The correct option is A.
Fluorescent lamps have many advantages over incandescent lamps and the options given in B, C and D are part of these advantages. The option given in A is a disadvantage and not an advantage. This is because, as a result of operating at an higher temperature, it will gives out and radiate more heat.
Here we know that



now from kinematics we have

now from above all values we have



so final angular speed is -12.6 rad/s
D. The red car is moving faster than the blue car