Correct option is A
Option (a) is the correct meaning of the given idiom.
Given Idiom:
Piece of cake – Something that is very easy to do or accomplish. (Hindi: बहुत आसान काम)
Example: The exam was a piece of cake for him because he had prepared well.
Other related idioms and their meanings:
·
Breeze through – To do something easily.
·
Easy as pie – Extremely easy.
·
Walk in the park – A very simple or enjoyable task.