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: barbata invests $ 2200 in the national bank at 5 %. how much additional money must she invest at 8 % so that the total annual income will be equal to 6 % of her entire investment ?
Options: a. 1100, b. 3000, c. 1000, d. 3600, e. 2400
[A]: a


[Q]: Problem: if two dice are thrown together, the probability of getting an even prime number on the dice is
Options: a. 1 / 36, b. 1 / 18, c. 1 / 13, d. 1 / 9, e. 5 / 36
[A]: a


[Q]: Problem: a lion chases a pony 7 hours after the pony runs. lion takes 8 hours to reach the pony. if the average speed of the lion is 49 kmph, what s the average speed of the pony ?
Options: a. 28.3 kmph, b. 29.8 kmph, c. 28.4 kmph, d. 29.5 kmph, e. 29.4 kmph
[A]:
e