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 six-character password consists of three letter of the alphabet and three different digits between 0 and 9, inclusive. The letter must appear as the second or third character of the password. How many different passwords are possible?

 Option A: 5,040

 Option B: 2,228,720

 Option C: 22,226,000

 Option D: 22,237,440

 Option E: 22,464,000

A: Option E
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Q: Question: The radius of a semi circle is 6.3 cm then its perimeter is?

 Option A: 32.9

 Option B: 32.4

 Option C: 32.2

 Option D: 32.1

 Option E: 32.7

A: Option B
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Q: Question: Which number can we add to 897326 to get a number exactly divisible by 456?

 Option A: 58

 Option B: 66

 Option C: 74

 Option D: 82

 Option E: 90

A:
Option D
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