To kill a mocking bird is a fictional book
You should obey all traffic laws when you operate a vehicle so the answer is B.
The correct answer is D. Wendy would rather eat out than cook at home.
This is the only sentence which is written in the positive form, meaning that it isn't using negative verbs or negative words such as not. In sentence A, the word never creates a negative form. In sentence B, the word not creates a negative form. In sentence C, doesn't is short for does not, which is also negative.
What does your essay have to be about?