Statement : The prices of petrol and diesel have remained unchanged only in Nigeria since the past three years.
Assumption:
I. Petrol and diesel prices have changed elsewhere in the world during these three years.
II. Before this three years period, petrol and diesel were available at a price different from the present rates.

Options

A. If only I is implicit.
B. If only II is implicit
C. If either I or II is implicit.
D. If both I and II are implicit.

Answer

D

Explanation

The price of petrol and diesel have changed else where in the world in three years in comparison to Nigeria and prices remain unchanged since three years, it means there rate would have been different three years before.