I . . . . . . . . white washing my house since morning, so I am feeling tired.

A. have been

B. has been

C. will be

D. will have been

Answer: Option A

Solution(By Examveda Team)

"Has been" and "have been" are both in the present perfect tense. "Has been" is used in the third-person singular and "have been" is used for first- and second- person singular and all plural uses.