If a power utility were able to replace an existing 500 kV transmission line with one operating at 1 MV, it would change the amount of heat produced in the transmission line to .

a. none of these.
b. The amount of heat produced would remain the same.
c. one-fourth of the previous value.
d. two times the previous value.
e. one-half of the previous value.
f. four times the previous value.