Gause's Principle states that in competition, the superior competitor eliminates the inferior one. This principle is derived from the concept of competitive exclusion, which states that two species cannot coexist indefinitely in the same niche when resources are limited.

Competitive exclusion is based on the idea that individuals within a population compete for limited resources, such as food, shelter, or mates. When two species occupy the same niche and have similar resource requirements, they will directly compete with each other. In this competition, the individuals that are better adapted to utilize the available resources will have a competitive advantage over those that are less adapted.

To better understand Gause's Principle, let's break down the concept:

1. Competitive Exclusion:
- Two species with similar resource requirements compete for limited resources.
- The competition can be intense, leading to one species outcompeting and eliminating the other.

2. Superior Competitor:
- The superior competitor refers to the species that has traits or adaptations that give it a competitive advantage over the other species.
- These advantages can include better foraging abilities, higher reproductive rates, or more efficient resource utilization.

3. Inferior Competitor:
- The inferior competitor is the species that is less adapted or lacks the advantageous traits needed to efficiently compete for resources.
- It is unable to sustain its population size and eventually gets eliminated from the competition.

4. Elimination:
- The elimination occurs when the inferior competitor's population declines to the point of extinction or is significantly reduced.
- This can happen due to reduced access to resources, increased predation, or other factors related to the competition.

In summary, Gause's Principle describes the outcome of competition between two species with similar resource requirements. The species that is better adapted and has a competitive advantage will outcompete and eliminate the other species, leading to its dominance in the ecosystem.

This statement is called Gause's principle so 1st option is correct