Reading Comprehension Passage: 87 | 100 RC`s for Government Exams Preparation - Bank Exams PDF Download

Frigid means very cold in temperature.
So, opposite of it is “Hot”.
Hence option D is correct.

Disarray means a state of disorganization.
Hotchpotch also mean the same.
Thus, option A is correct.

Refer to:
The Halley Bay colony once accounted for 5 to 9% of the global emperor penguin population,
The Dawson-Lambton Glacier colony 34 miles (55 kilometers) to the south has significantly swelled in numbers
Clearly, option B is correct.

Refer to:
But in 2016, the sea-ice platform on which the colony was raising its babies collapsed during rough weather.
From the underlined part above it's clear that the penguins breed on sea-ice platform. 
Hence option D is correct.

Refer:
Dawson-Lambton Glacier colony 34 miles (55 kilometers) to the south has significantly swelled in numbers since the devastation of Halley Bay, the BAC reported.
Thus statement I is false as the colony is swelled rather than died.
Refer:
The birds arrive at the site from their summer sea jaunts each April to breed.
Thus statement II is true.
Refer:
Dawson-Lambton Glacier colony 34 miles (55 kilometers) to the south has significantly swelled in numbers since the devastation of Halley Bay, the BAC reported. That colony, which had hit a low of just 1,280 pairs in the 2015 season, swelled in each succeeding year. In 2016, it reached 5,315 pairs.
Clearly, the statement taken as reference confirms that it's Dawson-Lambton colony and not Halley Bay that reached 5315 pairs in 2016. Thus statement III is false.
Hence option C is correct.

Refer to:
the sea-ice platform on which the colony was raising its babies collapsed during rough weather, throwing infant penguins unable to swim into the frigid water. In 2017 and 2018, the rough weather pattern repeated itself.
The underlined parts above validate that it's the weather that actually caused the devastation of the colony. Hence, statement III is true.
Statement I is nowhere mentioned in the passage and statement II is the effect of the cause described above. Clearly, statement II is not the main reason for the devastation of the colony. 
Hence option B is correct.

Refer:
The Dawson-Lambton Glacier colony 34 miles (55 kilometers) to the south has significantly swelled in numbers since the devastation of Halley Bay, the BAC reported.
Thus statement I is true.
Refer:
But in 2016, the sea-ice platform on which the colony was raising its babies collapsed during rough weather, throwing infant penguins unable to swim into the frigid water.
Thus statement II is true.
Refer:
The birds arrive at the site from their summer sea jaunts each April to breed; for the resulting chicks to survive, the site has to remain stable throughout the Southern Hemisphere’s winter, which lasts until December.
Thus statement III is true.
Hence option E is correct.