In Writing a Mystery Story,your Friend Has the Fictitious Villain

In writing a mystery story,your friend has the fictitious villain planning a robbery and needs to use a statement about the timing of the robbery.Which of the following statements would you recommend to your friend?

A) "Because it is new Moon this evening, we can plan the job for three weeks from today, when the night will be moonless."
B) "It is now full Moon, so we need to wait for two weeks before we get a moonless night."
C) "We will do the job about a month from now, when the sky will be moonless, because it is full Moon tonight."
D) "It is a first quarter Moon now, so we have to wait only about a week for a dark, moonless night."