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: rectangle a has sides a and b , and rectangle b has sides c and d . if a / c = b / d = 3 / 4 , what is the ratio of rectangle a ’ s area to rectangle b ’ s area ? 
Options: a ) 3 / 4 , b ) 9 / 16 , c ) 16 / 3 , d ) 4 / 3 , e ) 3 / 16
[A]: b


[Q]: Problem: if the sides of a triangle are 78 cm , 72 cm and 30 cm , what is its area ? 
Options: a ) 120 cm 2 , b ) 765 cm 2 , c ) 1080 cm 2 , d ) 197 cm 2 , e ) 275 cm 2
[A]: c


[Q]: Problem: what is the area of square field whose side of length 14 m ? 
Options: a ) 225 , b ) 196 , c ) 266 , d ) 288 , e ) 261
[A]:
b