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.

[EX Q]: Problem: a company produces 50000 bottles of water everyday. if a case can hold 25 bottles of water. how many cases are required by the company to hold its one day production
Options: a. 2000, b. 4500, c. 5000, d. 8000, e. 9000
[EX A]: a

[EX Q]: Problem: the area of a triangle is with base 18 m and height 6 m ?
Options: a. 88 m 2, b. 10 m 2, c. 66 m 2, d. 54 m 2, e. 31 m 2
[EX A]: d

[EX Q]: Problem: a train 124 m long running at 68 kmph crosses a platform in 19 sec. what is the length of the platform ?
Options: a. 338, b. 234, c. 240, d. 881, e. 271
[EX A]:
b