Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

[Q]: Problem: if x ^ 2 – 4 x = 5, then one possible value of x – 2 =
Options: a. - 9, b. - 5, c. - 3, d. - 1, e. 5
[A]: c


[Q]: Problem: there is one 4 - digit whole number n, such that the last 4 digits of n 2 are in fact the original number n
Options: a. 8476, b. 7376, c. 9376, d. 7378, e. 9466
[A]: c


[Q]: Problem: adam borrowed some money at the rate of 6 % p. a. for the first two years, at the rate of 9 % p. a. for the next 3 years, and at the rate of 14 % p. a. for the period beyond 5 years. 1 £ he pays a total interest of rs. 11400 at the end of 9 years how much money did he borrow ?
Options: a. rs. 8000, b. rs. 09000, c. rs. 11000, d. rs. 10000, e. rs. 12000
[A]:
e