Choose from options: Determine if the sentence is true based on the text below:
You will your muscles tighten when doing a valdez

How to do a valdez<br>Sit upright with your left leg extended in front of you, and your right leg standing bent. Point your left toe straight ahead. You should feel the muscles in your left leg tighten as you stretch your toes.
Options are:
(a). Yes;
(b). It's impossible to say;
(c). No;