Identify the most appropriate option to improve the underlined segment. If no improvement is required, select "No improvement".
Since it falls on the floor, her dog, a black Labrador, gulped the biscuit down.

Options

A. Since it fell
B. Because it is falling
C. No improvement
D. As it have fallen

Answer

A

Explanation

In the given sentence there are two clauses the main clause is .Her dog, a black Labrador, gulped the biscuit down.. and the subordinate clause is .Since it falls on the floor As we can see that the main clause.s verb is in the past tense the verb is .gulped. so according to the rule of grammar the subordinate clause should be in the past tense.