Ok! friends out of the code I have a question which one is correct about 1 em

Question

A)15 inch
B)36 px
C)12 pt
D)1 inch

Answer 1

C

Answer 2

The correct answer is:

C) 12 pt

In typography, 1 em is traditionally defined as the height of the font's body, which for most fonts is equal to 12 points (pt).