Find the antonym of HINDER
a) Facilitate
b) Stimulate
c) Consistent
d) Eradicate

Hint: An antonym is a word that is opposite in meaning to another word. Example- Bright is the antonym of dark.

Complete step by step answer:
 Hinder refers to obstructing or holding back someone from doing something. The word hinder has been derived from the English word- Hinderweard, which means backward.
We know the meaning and the origin of the word hinder. Now, let’s look at its usage:
Example- You should not eat pizza; it will hinder your fitness progress. Here, we can understand that X is advising Y that he shouldn’t eat pizza, as it will slow down his fitness progress.
Let’s examine the given options-
a) Facilitate- It means to aid or help someone in doing something. It is opposite in meaning to hinder. Hence, it is the correct option.
b) Stimulate- It means to encourage or motivate someone. It is different in meaning to hinder. Hence, it is an incorrect option.
c) Consistent- It refers to someone or something that is regular or constant. It is different in meaning to hinder. Hence, it is an incorrect option.
d) Eradicate- It means to remove or get rid of something. It is different in meaning to hinder. Hence, it is an incorrect option.
The correct answer is Option ‘a’.

Note: Both opposites and antonyms have the same function and meaning. Hence, do not get confused between the two.