In question 11-20 a list of interpretations is given below every sentence or phrase choose the interpretation that gives the correct meaning of the underlined idiom in the sentence or phrase.
It is said that those who live in glass houses should not throw stones. This means it is said that
A. People who live unclear life should not find faults with others B. people who are decent should not attack the indecent ones C. people who are forth mate in life should protect them from damage D. none of the above