In this task, you need to provide the correct option for a given problem from the provided options.

Q: Problem: the ratio between the number of sheep and the number of horses at the stewart farm is 5 to 7 , if each horse is fed 230 ounces of horse food per day and the farm needs a total 12,880 ounces of horse food per day , what is the number of sheep in the farm ? 
Options: a ) 18 , b ) 28 , c ) 40 , d ) 56 , e ) 60

A: c
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Q: Problem: a college has classes from 10 : 00 am until 1 : 40 pm . in this duration , there are 5 periods . if 5 minutes are provided between each period to leave one class and enter the next class , how many minutes long is each period ? 
Options: a ) 38 min , b ) 41 min , c ) 40 min , d ) 42 min , e ) 52 min

A: c
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Q: Problem: right now , the ratio between the ages of sandy and molly is 4 : 3 . after 6 years , sandy ’ s age will be 34 years . what is molly ' s age right now ? 
Options: a ) 12 , b ) 15 , c ) 18 , d ) 21 , e ) 24

A:
d
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