In which sentence is the underlined verb in the passive voice?

AThe rock concert [is being given] just one more time.
BThe rock group [will have given] the concert by then.
CThe rock group [is giving] the concert just one more time.
DBy then the rock group [was] already [giving] the concert.

Verified Answer :

The correct answer for the question that is being presented above is this one: "a. The rock concert [is being given] just one more time." The sentence that is the underlined verb in the passive voice is that a. The rock concert [is being given] just one more time.

The correct answer is: A.The rock concert [is being given] just one more time.