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.

Question: A train 175 m long pass a telegraph pole in 5 seconds. Find the speed of the train

Option A: 66 km/hr

Option B: 68.4 km/hr

Option C: 72 km/hr

Option D: 126 km/hr

Option E: None
Option D

Question: x% of y is y% of ?

Option A: x

Option B: 100x

Option C: x/100

Option D: y/100

Option E: None
Option A

Question: Tom, who has 50 math questions, will get 7 points per question if he chooses a correct answer. If he chooses a wrong answer to a question or skips one, he will lose 3 points per question. Then, which of the following can be the score if he solves all the 50 questions?

Option A: 190

Option B: 193

Option C: 194

Option D: 195

Option E: 196
Option A