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: If k and w are the dimensions of a rectangle that has area 21, and if k and w are integers such that k > w, what is the total number of possible values of k?

 Option A:  Two

 Option B:  Three

 Option C:  Four

 Option D:  Five

 Option E:  Six
[EX A]: Option A

[EX Q]: Question: The cost price of a radio is Rs.1500 and it was sold for Rs.1230, find the loss %?

 Option A: 18%

 Option B: 19%

 Option C: 28%

 Option D: 38%

 Option E: 16%
[EX A]: Option A

[EX Q]: Question: A factory produces 6500 toys per week. If the workers at this factory work 5 days a week and if these workers make the same number of toys everyday, how many toys are produced each day?

 Option A: 1375 toys

 Option B: 2375 toys

 Option C: 1300 toys

 Option D: 1375 toys

 Option E: 2375 toys
[EX A]:
Option C