instruction:
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.
question:
Question: A father was as old as his son's present at the time of your birth. If the father's age is 44 years now, the son's age 5years back was?

Option A: 10 years

Option B: 12 years

Option C: 14 years

Option D: 16 years

Option E: 17 years
answer:
Option E

question:
Question: At a local supermarket, a box of cereal usually costs 22 dollars. This week, the supermarket sells the box of cereal for 11 dollars. How much money will you save if you buy this cereal at this supermarket?

Option A: 11 dollars

Option B: 13 dollars

Option C: 14 dollars

Option D: 12 dollars

Option E: 10 dollar
answer:
Option A

question:
Question: A certain basketball team played seven games and scored an average of 50 points per game. If, in the team's first five games, it scored 45, 39, 61, 50, and 43 points, what was the average (arithmetic mean) number of points scored over the last two games?

Option A: 65

Option B: 81

Option C: 82

Option D: 56

Option E: Cannot be determined from the information given.
answer:
Option D