Newton states that he could not have made his discoveries his predecessors had not shown him the right path.

Directions: In the question below, a sentence is given with a part of it printed in bold type. That part may contain grammatical error. This sentence is followed by phrases. Find out which phrase should replace the phrase given in bold to correct the error if there is any, and to make the sentence grammatically meaningful and correct if the sentence is correct as it is and no correction is required, mark (5) as the answer.