Respuesta :
A, b, and D. all have the expression " was promissed" in them, which points to the fact that they're all in passive voice. C however doesn't have any passive voive in it, only active voice, as seen in the verb "promissed" (without "was").
c- correct answer.
c- correct answer.
'c' is the correct answer because the agent of the action 'April' is mentioned doing the task.