You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

[Q]: Question: A company consists of 5 senior and 3 junior staff officers. If a committee is created with 3 senior and 1 junior staff officers, in how many ways can the committee be formed?

Option A: 12

Option B: 30

Option C: 45

Option D: 80

Option E: 200
[A]: Option B

[Q]: Question: Mr. Evans will states that each of his children will receive an equal share of his estate and that his grandchildren will split a portion of the estate that is equal to the share received by each of his children. If Mr. Evans has 4 children and 5 grandchildren, then approximately what percentage of Mr. Evans estate will each grandchild receive?

Option A: 20%

Option B: 17%

Option C: 4.0%

Option D: 3.3%

Option E: 2.8%
[A]: Option C

[Q]: Question: Of the three-digit integers greater than 600, how many have distinct digits ?

Option A: 90

Option B: 82

Option C: 80

Option D: 45

Option E: 288
[A]:
Option E