Step 1: Understand each term in List - I and match it with its correct definition in List - II.
(A) No. of years purchase means the number of years the firm is expected to continue earning the same profit, which matches with (IV).
(B) Super profit is the excess of average profit over normal profit, matching with (I).
(C) Normal profit refers to the expected profit in the industry, matching with (II).
(D) Average profit is total profit divided by number of years, matching with (III).
Step 2: Verify the correctness of option (a) with these matches.
Option (a) correctly pairs all List - I items with their corresponding List - II definitions.