In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: frank the fencemaker needs to fence in a rectangular yard . he fences in the entire yard , except for one full side of the yard , which equals 40 feet . the yard has an area of 200 square feet . how many feet offence does frank use ? 
Options: a ) 14 , b ) 47 , c ) 50 , d ) 180 , e ) 240
[A]: c


[Q]: Problem: if y is the smallest positive integer such that 3,675 multiplied by y is the square of an integer , then y must be 
Options: a ) 2 , b ) 5 , c ) 6 , d ) 7 , e ) 12
[A]: e


[Q]: Problem: the diagonal of a square is twice the side of equilateral triangle then the ratio of area of the triangle to the area of square is ? 
Options: ['a ) 3 √ 9', 'b ) 3 √ 8', 'c ) 3 √ 7', 'd ) 3 √ 5', 'e ) 3 √ 1']
[A]:
b