What conditions must the tyres of a motorcycle meet?

What conditions must the tyres of a motorcycle meet?
A)Both wheels must be the same size and specifications.
B)The grooves of the tread must have a minimum depth of 1.6 millimetres.
C)They must not show cuts, abrasions, deformations, etc.Correct
It is necessary to periodically inspect the tyre tread to check that there are no irregular wear, cuts, cracks, deformations or foreign objects inside (such as nails or gravel).