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.

[EX Q]: Question: What is the next number of the following sequence
10, 7, 12, 10, 14, __ ?

Option A: 13

Option B: 14

Option C: 15

Option D: 16

Option E: 17
[EX A]: Option A

[EX Q]: Question: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank?

Option A: 14 min 19 sec

Option B: 14 min 42 sec

Option C: 14 min 20 sec

Option D: 14 min 40 sec

Option E: 14 min 10 sec
[EX A]: Option D

[EX Q]: Question: Today Joelle opened an interest-bearing savings account and deposited $6,000. If the annual interest rate is 4 percent compounded interest, and she neither deposits nor withdraws money for exactly 2 years, how much money will she have in the account?

Option A: $6,048.00

Option B: $6,240.00

Option C: $6,450.00

Option D: $6,480.00

Option E: $6,489.60
[EX A]:
Option E