An Industrial Engineer Wants to Test the Effect of Three

An industrial engineer wants to test the effect of three different ways of assembling a part on the total assembly time.Five people are randomly assigned to each of the three assembly methods,and the total assembly time (in seconds) is recorded.How many degrees of freedom does the treatment sum of squares have? How about the error sum of squares?

A) df-treatment = 2; df-error = 14
B) df-treatment = 3; df-error = 12
C) df-treatment = 2; df-error = 12
D) df-treatment = 2; df-error = 13
E) df-treatment = 3; df-error = 14