Physics · Electrostatic Potential

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Aeroplane tyres are made of specially formulated rubber that is slightly conducting. Reason (R): Conducting tyres help dissipate the static charges accumulated on aircraft due to friction with air into the earth upon landing. In the light of the above statements, choose the correct answer from the options given below:

1. A
   Both (A) and (R) are true and (R) is the correct explanation of (A).
2. B
   Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. C
   is true but (R) is false.
4. D
   is false but (R) is true.