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 bus takes 3 hours to cover a distance of 500 Km. how much should the speed in Kmph be maintained to cover the same direction in 5/3th of the previous time?

Option A: 75 Kmph

Option B: 100 Kmph

Option C: 90 Kmph

Option D: 65 Kmph

Option E: 70 Kmph
[A]: Option B

[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: if m>0 and y is m percent of x, then, in terms of m, x is what percent of y?

Option A: a

Option B: b

Option C: c

Option D: d

Option E: e
[A]:
Option C