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: Consider Input: Question: Which of the following is always true for any real number 'a' and 'b'?

Option A: |ab| = |a||b|

Option B: |a/b| = |a|/|b|

Option C: |-ab| < |a||b|

Option D: |ab| > |a/b|

Option E: |ab| = -|ab|

Output: Option A

Input: Consider Input: Question: In a company 200 persons, working 6 hours per day complete 1/3 rd of the work in 7 days. Employee number of additional persons, working 4 hrs per day, required to complete the remaining work in 15 days is :

Option A: 60

Option B: 80

Option C: 90

Option D: 70

Option E: 50

Output: Option B

Input: Consider Input: Question: If a ring of diameter 4 inches moves at the rate of x inches/min and another ring of diameter 12 inches moves at the rate of y inches/min, and if they both cover a distance at the same time then find the value of x in terms of y?

Option A: 6y/2

Option B: 3y/4

Option C: 5y/2

Option D: 2y/4

Option E: 1y/3
Output: Option E