In order to compare two fractions, they must both have the same denominator. In this case, we'll begin by converting 1/4 to twelfths. Multiply the denominator of 1/4 by 3:
4 × 3 = 12
This gives us 1/12. But to avoid changing the overall value of the fraction, we must also multiply the numerator of 1/4 by 3:
1 × 3 = 3
This leaves us with a final value of 3/12. We have now proven that 1/4 is equal to 3/12. This is the answer to your question:
A) 1/4 = 3/12
I hope this helps!