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: 1 , 6 , 16 , 31 , 51 , ( . . . . ) 
Options: a ) 61 , b ) 66 , c ) 76 , d ) 86 , e ) 83

A: b
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Q: Problem: on dividing 13698 by a certain number , we get 89 as quotient and 14 as remainder . what is the divisor ? 
Options: a ) 743 , b ) 154 , c ) 852 , d ) 741 , e ) 785

A: b
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Q: Problem: if there are 10 peanuts in a box and mary puts 8 more peanuts inside , how many peanuts are in the box ? 
Options: a ) 8 , b ) 9 , c ) 10 , d ) 11 , e ) 18

A:
e
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