This is a question with answer options. Goal: How to check that dough for bread has risen to a proper size?

Which of the following methods is more reasonable for accomplishing this goal?

a). Press into the dough firmly, if the crease disappears, the bread is properly proofed;
b). Press into the dough lightly, if the crease remains, the bread is properly proofed;...I think the answer is
b).