Concept:Per cent means "out of 100". So any percentage can be written as a fraction with denominator 100, then reduced to lowest terms.Solution:25%=10025The greatest common factor of 25 and 100 is 25 (since 100=4×25).Divide numerator and denominator by 25:100÷2525÷25=4141 is in lowest form because 1 and 4 have no common factor other than 1.Answer:Option C (41)