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

Q: Problem: if the radius of a circle is decreased 20 % , what happens to the area ? 
Options: a ) 10 % decrease , b ) 20 % decrease , c ) 36 % decrease , d ) 40 % decrease , e ) 50 % decrease

A: c
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Q: Problem: one side of a rectangular field is 15 m and one of its diagonals is 17 m . find the area of the field in meter square 
Options: a ) 100 , b ) 110 , c ) 120 , d ) 130 , e ) 140

A: c
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Q: Problem: in measuring the sides of a rectangle , one side is taken 6 % in excess and other 5 % in deficit . find the error percentage in the area calculated from these measurements . 
Options: a ) 3.5 % , b ) 2.4 % , c ) 3 % , d ) 5 % , e ) 0.7 %

A:
e
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