The rear fog light must be used in the case of...

A)sudden braking.
B)overnight frost.
C)dense clouds of smoke.Correct
REAR FOG LIGHT:
- Its installation and use is mandatory.
- It shall be red in colour.
- It shall be used, mandatorily, in the case of THICK fog, VERY heavy rain, HEAVY snowfall, or DENSE clouds of smoke or dust.
- Its installation and use is mandatory.
- It shall be red in colour.
- It shall be used, mandatorily, in the case of THICK fog, VERY heavy rain, HEAVY snowfall, or DENSE clouds of smoke or dust.