As shown in the illustration, if 'R1' and 'R2' have unequal values, the _____________.

A.voltage drop across 'R1' will not be equal to the voltage drop across 'R2'
B.current flow through 'R1' will equal the current flow through 'R2'
C.the energy dissipated in 'R1' will be the same as the energy dissipated in 'R2'
D. current flow through 'R1' will differ from the current flow through 'R2'