a. Panthera tigris

Panthera tigris is the scientific name for the tiger. It follows the rules of binomial nomenclature, which is the system used to give each species a unique scientific name. The first part of the name, Panthera, represents the genus to which the species belongs. In this case, Panthera includes big cats such as lions, leopards, and jaguars. The second part of the name, tigris, is the species identifier and refers specifically to the tiger. Therefore, Panthera tigris represents the scientific name for the tiger.

b. Mangifera indica

Mangifera indica is the botanical name for the mango tree. The genus name, Mangifera, represents a group of tropical fruit trees, including the mango. The specific epithet, indica, is used to distinguish this particular species within the genus. Therefore, Mangifera indica represents the scientific name for the mango tree.

c. Pisum sativum

Pisum sativum is the botanical name for the garden pea. The genus name, Pisum, represents a group of leguminous plants that includes various types of peas. The specific epithet, sativum, is used to identify the cultivated form of the plant. Therefore, Pisum sativum represents the scientific name for the garden pea.

d. Homo sapiens

Homo sapiens is the scientific name for modern humans. The genus name, Homo, represents the group of primates that includes humans and our closest extinct relatives. The specific epithet, sapiens, refers specifically to the species of modern humans. Therefore, Homo sapiens represents the scientific name for modern humans.

In conclusion, all four options provided follow the rules of binomial nomenclature and represent the correct botanical/zoological names for the respective organisms.

A