Find the most correct sentence-

A He is the best orator whom I have seen

B He is the best orator whom I had seen

C He is best orator whom I have seen

D He is the best orator that I have seen

Correct Answer: Option A

superlative degree এর পূর্বে the বসে
-orator শব্দের অর্থ বক্তা তাই এটির ক্ষেত্রে whom বসবে