想請問大家這道題目
It really doesn’t matter whether there is only coffee or tea.
______ will do.
(A. Any B. Either C. Both D. Anything)
答案是B. Either
C選項為什麼不行呢
題目只給了解答沒有詳解，來這邊請教！！

both：兩個「一起」

either coffee or teaboth coffee and tea