Four alternatives are given for the idiom/phrase in quotation marks in the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.Women should be paid the same as men when they do the same job, for, surely "what is sauce for the goose is sauce for the gander".

• A. What is thought suitable pay for a man should also be for a woman
• B. Goose and the gender eat the same sauce
• C. Both goose and gander should be equally treated
• D. The principle of equal treatment should be implemented