Complete analogous pair - Video : Cassette : : Computer : ?

D. FLOPPY

Complete analogous pair - Import : Export : : Expenditure : ?

B. REVENUE

Complete analogous pair - Touch : Feel : : Greet : ?

C. ACKNOWLEDGE

Complete analogous pair - Conference : Chairman : : Newspaper : ?

D. EDITOR

The equations 4x + 7y - 10 =0 and 20x + 35y - 50 = 0 are :

B. CONSISTENT AND HAVE INFINITELY MANY SOLUTIONS.