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

Problem: the volume of a sphere with radius r is ( 4 / 3 ) * pi * r ^ 3 and the surface area is 4 * pi * r ^ 3 . if a sperical balloon has a volume of 36 pi cubic centimeters , what is hte surface area of the balloon in square centimeters ?
Options: a ) a . 40 , b ) b . 100 , c ) c . 400 , d ) d . 1,000 , e ) e . 10,000
b

Problem: the length of rectangle is thrice its breadth and its perimeter is 64 m , find the area of the rectangle ?
Options: a ) 432 sq m , b ) 192 sq m , c ) 452 sq m , d ) 428 sq m , e ) 528 sq m
b

Problem: what is the smallest positive perfect square that is divisible by 12 , 15 , and 18 ?
Options: a ) 900 , b ) 1,600 , c ) 2,500 , d ) 3,600 , e ) 4,900
a