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 car dealership has 40 cars on the lot, 30% of which are silver. If the dealership receives a new shipment of 80 cars, 40% of which are not silver, what percentage of total number of cars are silver?

 Option A: 35%

 Option B: 37.5%

 Option C: 45%

 Option D: 47.5%

 Option E: 50%
[A]: Option E


[Q]: Question: A and B rent a pasture for 10 months. A put in 80 cows for 7 months. How many can B put in for the remaining 3 months, if he pays half as much again as A?

 Option A: 388

 Option B: 277

 Option C: 266

 Option D: 280

 Option E: 191
[A]: Option D


[Q]: Question: list of salaries of 5 employees are listed below. What is the median salary?
$40,000, $29,000, $35,500, $31,000, $43,000

 Option A: $28,000

 Option B: $28,500

 Option C: $30,200

 Option D: $30,800

 Option E: $35,500
[A]:
Option E