Harry uses the phrase "kick the bucket" to express that someone has died. Stanach uses a similar Polish phrase that translates as "kick the calendar." Both are using which of the following expressions?
A. Idiom
B. Vocabulary
C. Comparison
D. Belief
Both are using "idioms" when they say these things, since an idiom is a phrase that is supposed to have a non-literal meaning, that conveys an understanding through common expression.