Definition: You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
Input: Question: The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

 Option A: 4

 Option B: 5

 Option C: 6

 Option D: 7

 Option E: 9

Option A