Piece of cake.
The question asks for the correct meaning of the English idiom "Piece of cake". Idioms are phrases where the words together have a different meaning than the dictionary definitions of the individual words. Understanding idioms is crucial for mastering the English language.
The idiom "Piece of cake" is used to describe a task, job, or activity that is very easy to do. It implies that something requires minimal effort and can be accomplished without difficulty.
Let's examine the provided options:
Based on the analysis, the correct meaning of the idiom "Piece of cake" is that a task or activity is very easy or simple. Therefore, Option 3 is the correct answer.
For example, if someone finds a math problem very easy, they might say, "Solving that equation was a piece of cake!"