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: the least perfect square , which is divisible by each of 21 , 36 and 66 is 
Options: a ) 213414 , b ) 213424 , c ) 213434 , d ) 213444 , e ) none of these

A: d
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Q: Problem: some people are standing square . from them 32 are removed and then form a small square and then 8 more removed . now we can not form the square . so how many people are there at the beginning ? 
Options: a ) 31 , b ) 32 , c ) 33 , d ) 34 , e ) ca n ' t be determined

A: e
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Q: Problem: a rectangular field is to be fenced on three sides leaving a side of 80 feet uncovered . if the area of the field is 680 sq . ft , how many feet of fencing will be required ? 
Options: a ) 44 ft , b ) 97 ft , c ) 22 ft , d ) 11 ft , e ) 66 ft

A:
b
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