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: in a certain parallelogram the degree measure of one angle exceeds that of the other by 20 what is the degree measure of the smaller angle ? 
Options: a ) 75 , b ) 80 , c ) 85 , d ) 90 , e ) 95

Output: b


Input: Consider Input: Problem: the area of an isosceles trapezoid with sides of length 5 and bases of length 9 and 15 is ? 
Options: a ) 44 , b ) 48 , c ) 46 , d ) 47 , e ) 50

Output: b


Input: Consider Input: Problem: find the surface area of a 10 cm * 4 cm * 3 cm brick . 
Options: ['a ) 154 cm square', 'b ) 156 cm square', 'c ) 160 cm square', 'd ) 164 cm square', 'e ) none of these']


Output: d