Which factors affect heat transfer between a warm and a cool substance?

Which factors affect heat transfer between a warm and a cool substance?

the time it took to heat the substance, the area of contact, and the specific heats of the substances the amount of time of contact, the area of contact, and the specific heats of the substances the time it took to heat the substance, the area of the substances, and the specific heats of the substances

Hope this helps! Yes I know this question was 3 years ago!

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work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.