The correct answer is: B. Are your lessons not being revised by you?
The other options are incorrect because they do not use the correct verb tense. The question is in the present tense, so the answer must also be in the present tense. Option A, “Are your lessons not be revised by you?”, uses the wrong verb tense. The verb “be revised” should be “are being revised”. Option C, “Are not your lessons revised by you?”, also uses the wrong verb tense. The verb “are revised” should be “are being revised”. Option D, “Are you not being revising your lessons?”, is grammatically incorrect. The verb “are being revising” is not a correct verb form.
The sentence “Are your lessons not being revised by you?” means that you are not the one who is revising your lessons. Someone else is revising your lessons for you.