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.

Example Input: Question: A broker invested her own money in the stock market. During the first year, she increased her stock market wealth by 40 percent. In the second year, largely as a result of a slump in the stock market, she suffered a 30 percent decrease in the value of her stock investments. What was the net increase or decrease on her overall stock investment wealth by the end of the second year?

 Option A: −5%

 Option B: −2%

 Option C: 15%

 Option D: 20%

 Option E: 80%
Example Output: Option B

Example Input: Question: which no. need to add to 859622 to get a number exactly divisible by 456?

 Option A: 345652

 Option B: 547678

 Option C: 356789

 Option D: 778990

 Option E: 859622
Example Output: Option E

Example Input: Question: There are 7 players in a chess group, and each player plays each of the others once. Given that each game is played by two players, how many total games will be played?

 Option A: 21

 Option B: 30

 Option C: 45

 Option D: 60

 Option E: 90
Example Output:
Option A