Read the text and determine if the sentence is true (see options at the end):

How to wake up in the middle of the night<br>Practice by waking up at the same time for a month. Nerves in your brain control your body's clock, known as your circadian rhythm. This rhythm is established by following a predictable routine, which is why you are able to wake up at the same time on the weekend as you are during the week if all factors are equal.

Sentence: Waking up at seven is easier than waking up at night.
Pick from: (A). Yes; (B). It's impossible to say; (C). No;
(B).