Choose the correct alternative from the following : - Assertion (A) : Safety fuses are made up of materials having a high melting point. Reason (R) : Safety fuses should be resistant to electric current.
(i) In a family of six persons A, B, C, D, E and F, there are two married couples.
(ii) D is grandmother of A and mother of B.
(iii) C is wife of B and mother of F.
(iv) F is the grand daughter of E.