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

Input: Consider Input: Problem: if the sides of a triangle are 26 cm , 24 cm and 12 cm , what is its area ? 
Options: a ) 144 , b ) 772 , c ) 288 , d ) 266 , e ) 2848

Output: a


Input: Consider Input: Problem: the area of a triangle will be when a = 2 m , b = 5 m , c = 7 m , a , b , c being lengths of respective sides ? 
Options: a ) 2 , b ) 7 , c ) 5 , d ) 3 , e ) 4

Output: b


Input: Consider Input: Problem: what will be the percentage increase in the area of the cube ' s surface if each of the cube ' s edges grows by 10 % ? 
Options: a ) 25 % , b ) 28 % , c ) 21 % , d ) 30 % , e ) 32 %


Output: c