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

Q: Problem: if n is a natural number , then ( 6 n ^ 2 + 6 n ) is always divisible by 
Options: a ) 6 only , b ) 6 and 12 both , c ) 12 only , d ) 18 only , e ) 12 and 18 both

A: b
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Q: Problem: if t = 5 / 9 * ( k - 32 ) , and if t = 35 , then what is the value of k ? 
Options: a ) 92 , b ) 95 , c ) 98 , d ) 101 , e ) 104

A: b
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Q: Problem: what two - digit number is less than the sum of the square of its digits by 13 and exceeds their doubled product by 5 ? 
Options: a ) 95 , b ) 99 , c ) 26 , d ) 73 , e ) none of the above

A:
b
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