Choose the correct meaning of the idiom/phrase.
In the good books of the boss.
A) Work well for the boss
B) Praise the boss
C) In favour with the boss
D) Cooperative with boss

Hint: The phrase given in the question is ‘in the good books of the boss’. From this, the idiom is ‘in the good books’. It is used to refer to being liked or favored by someone for the quality of work, good attitude, or any other good characteristic that a person has.

Complete answer:
In the given question, we need to understand the meaning of the given idiom. Upon doing this we need to find the option that describes the meaning of the given phrase well.
An idiom refers to a group of words that together, as a collective, expresses a meaning that is different and varied from the literal meanings of the words that make up the idiom.
In the question, the given idiom is ‘in the good books’ of the boss. The phrase ‘in the good books of the boss’ is used to express being liked by the boss for the good work done by the employee.
Now, we will try to understand the options given and select a suitable option.
Options ‘A’, ‘B’ and ‘D’ are incorrect as its meanings are different from that of the given idiom.
Hence, the correct answer is option ‘C’, in favor with the boss, as it perfectly explains the meaning of the given phrase.

Note:
For questions related to idioms it is necessary to know their meanings, so learn a list of idioms and their meanings. This will help you to answer all kinds of questions that are related to the topic of idioms.