How to measure your shirt size<br>Keep your body relaxed while taking your measurements. Do not puff out your chest, suck in your belly, or flex your muscles. If you do any of these, the measurements will not be accurate and the shirt will not fit.

Can we draw the following conclusion?
Exhalations may result in inaccurate measurements.

Select from the following.
A). Yes;
B). It's impossible to say;
C). No;
A).