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: a waitress ' s income consists of her salary and tips. during one week, her tips were 3 / 4 of her salary. what fraction of her income for the week came from tips ?
Options: a. 1 / 9, b. 1 / 6, c. 3 / 7, d. 4 / 9, e. 5 / 9

A: c
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Q: Problem: a bag contains 10 red jellybeans and 10 blue jellybeans. if 3 jellybeans are removed one at a time, at random and are not replaced, what is the probability e that all 3 jellybeans removed from the bag are blue ?
Options: a. 9 / 100, b. 2 / 19, c. 1 / 8, d. 3 / 20, e. 3 / 10

A: b
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Q: Problem: 4 friends are pooling their money for pizza. emma has 8 dollars. daya has 25 % more money than emma, jeff has 2 / 5 of the money daya has, and brenda has 4 more dollars than jeff. how much money does brenda have ?
Options: a. 14, b. 6, c. 7, d. 8, e. 10

A:
d
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