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: if the sides of a triangle are 196 cm , 81 cm and 277 cm , what is its area ? 
Options: a ) 5000 , b ) 5656 , c ) 7878 , d ) 7900 , e ) 7938

A: e
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Q: Problem: find the smallest number that must be added to 1780 to make it a perfect square . 
Options: a ) 17 , b ) 42 , c ) 69 , d ) 47 , e ) 52

A: c
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Q: Problem: 8 business executives and 7 chairmen meet at a conference . if each business executive shakes the hand of every other business executive and every chairman once , and each chairman shakes the hand of each of the business executives but not the other chairmen , how many handshakes would take place ? 
Options: a ) 144 , b ) 131 , c ) 115 , d ) 84 , e ) 45

A:
d
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