Select the option that can be used as a one-word substitute for the given group of words.
A policy that separates people on the basis of race

Correct option is B

The correct one-word substitution for "a policy that separates people on the basis of race" is "Apartheid."
Meaning:
Apartheid – A system of institutional racial segregation and discrimination. (नस्लभेद)
Example: "Nelson Mandela fought against apartheid in South Africa."
Meanings of the other given options:
· Apiary – A place where bees are kept (मधुमक्खी पालन केंद्र).
· Apostasy – Abandoning one’s religion or belief (धर्म त्याग).
· Apostle – A follower or messenger (प्रचारक).