In the circuit above R is a resistor whose resistance increases with increases with increase in temperature L1 and L2 are identical lamps. If the temperature of R increases
-
A.
L1 becomes brighter and L2 becomes dimmer -
B.
L1 becomes brighter and L2 does not change -
C.
L2 becomes dimmer and L1 does not change -
D.
L1 becomes dimmer and L2 does not change -
E.
L1 and L2 becomes brighter