The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don't find any error, mark 'No error' as your answer.
He promised them that he would sure repay the loan urgently.

Correct option is D

The error in this sentence lies in part (d), specifically in the phrase "he would sure repay."
 The correct usage should be "he would surely repay," as "surely" is an adverb that modifies the verb "repay."
 Adverbs are used to describe how, when, where, or to what extent an action is performed.
 In this case, "surely" conveys the manner in which he promises to repay the loan.
 The original sentence incorrectly uses the adjective "sure" instead of the adverb "surely."
 Thus, the corrected sentence should read: "He promised them that he would surely repay the loan urgently."

Example: He would surely finish the project by the deadline.