TASK DEFINITION: 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.
PROBLEM: Question: Find the equation of a line which passes through A(4, -1) and is parallel to x axis.

 Option A: y=-2

 Option B: y=3

 Option C: y=2

 Option D: y=-1

 Option E: y=0

SOLUTION: Option D

PROBLEM: Question: On what dates of April, 2001 did Wednesday fall?

 Option A: 1st, 8th, 15th, 22nd, 29th

 Option B: 2nd, 9th, 16th, 23rd, 30th

 Option C: 3rd, 10th, 17th, 24th

 Option D: 4th, 11th, 18th, 25th

 Option E: None of these

SOLUTION: Option D

PROBLEM: Question: On a shelf, 2 books of Geology, 2 books of Sociology and 5 of Economics are to be arranged in such a way that the books of any subject are to be together. Find in how many ways can this be done?

 Option A: 2880

 Option B: 2778

 Option C: 2682

 Option D: 8222

 Option E: 6282

SOLUTION:
Option A