Is it necessary to periodically check tyre pressure?

A)Not if we have tubeless tyres.
B)Yes, and we will do it when cold.Correct
C)Yes, we must take care of the condition of the tyres by checking their pressure, regardless of whether they are cold or hot.
The valve that holds the air inside the tyre suffers constant losses, so we must periodically add pressure until reaching that recommended by the manufacturer. We will measure the pressure with the tyre cold so that it is as accurate as possible.