Say "مَتى؟" in Arabic

What does "مَتى؟" mean in English?

• A.when?
• B.where?
• C.how much?
• D.who?

Translate to Arabic: "which?"

• A.أَيْنَ؟
• B.مَتى؟
• C.هَلْ تُحِبّ؟
• D.أَيّ؟