Correct option is (B) that is 12.
Explanation:
In the given equation 4 * (15 / (1 + 3)), first it will calculate the inner most
bracket i.e (1+3) which equal to 4. then 15 is divided by 4 and give 3. After that
4 is multiplied by 3 and give 12. In this way the whole expression is calculated
and print 12 as output.