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: what is the value of n if the sum of the consecutive odd intergers y from 1 to n equals 169 ?
Options: a. 47, b. 25, c. 37, d. 33, e. 29
[A]: b


[Q]: Problem: the sum of all the integers a such that - 26 < a < 24 is
Options: a. 0, b. - 2, c. - 25, d. - 49, e. - 51
[A]: d


[Q]: Problem: for any number z, z * is defined as the greatest positive even integer less than or equal to y. what is the value of 6.15 – 6.15 * ?
Options: a. 1.5, b. 0.15, c. 6.25, d. 0.25, e. 6.0
[A]:
b