Question

(A) The boiling point 6f cis-l,2-dichloroethene is higher than corresponding trans-isomer.
(R) The dipole moment of cis-l,2-dichloroethene is higher than trans-isomers.

1. If both (A) and (R) are true and (R) is correct explanation of (A).    
2. If both (A) and (R) are true but (R) is not correct explanation of (A)    
3. If (A)is true but (R)is false.    
4. If both (A) and (R) are false.