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

Q: Problem: a man can row 5 kmph in still water . when the river is running at 2 kmph , it takes him 1 hour to row to a place and black . what is the total distance traveled by the man ? 
Options: a ) 5.75 , b ) 5.7 , c ) 5.76 , d ) 4.2 , e ) 5.71

A: d
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Q: Problem: a can do a piece of work in 80 days and b in 100 days . they work together for 20 days and then b goes away . in how many days will a finish the remaining work ? 
Options: a ) 33 days , b ) 44 days , c ) 55 days , d ) 42 days , e ) 32 days

A: b
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Q: Problem: tim ' s garden is shaped like a square whose side is 28 meters . what ' s the length of the fence which surrounds the garden ? 
Options: ['a ) 110 meters', 'b ) 111 meters', 'c ) 112 meters', 'd ) 113 meters', 'e ) 114 meters']

A:
c
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