Fill up the blank, with the correct option.
You should take care _________ his health.

Correct option is A

The correct answer is (a) of.
The phrase "take care of" means to be responsible for someone or something. It is a fixed phrase where "of" is the correct preposition.
Take care of in Hindi: देखभाल करना। Example: You should take care of your parents in their old age.
Grammatical Rule Used:
· The phrase "take care of" is always followed by a noun or pronoun.
Meanings of other given options:
· On: Meaning: Indicates position or time, not used with "take care." On in Hindi: पर। Example: The book is on the table.
· With: Meaning: Indicates association or means. With in Hindi: के साथ। Example: He went to the park with his friend.
· From: Meaning: Indicates the source of something. From in Hindi: से। Example: He learned French from his teacher.