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'.

Input: Consider Input: Problem: a envelop weight 8.5 gm , if 820 of these envelop are sent with an advertisement mail . how much wieght ? 
Options: a ) 6.6 kg , b ) 6.8 kg , c ) 6.7 kg , d ) 6.97 kg , e ) 7.8 kg

Output: d


Input: Consider Input: 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

Output: b


Input: Consider Input: Problem: a certain company has records stored with a record storage firm in 15 - inch by 12 - inch by 10 - inch boxes . the boxes occupy 1.08 million cubic inches of space . if the company pays $ 0.2 per box per month for the record storage , what is the total amount that the company pays each month for record storage ? 
Options: a ) a . 150 , b ) b . 300 , c ) c . 600 , d ) d . 120 , e ) e . 200


Output: d