Select the option which has an error in it. If the sentence is correct, select “No error”:
(a)If you had (b) just hinted at your difficulty (c) I would most certainly help you. (d) NO ERROR
a. a
b. b
c. c
d. d

Hint: Go through the options carefully after reading the sentence to understand what each part of the sentence implies. This will help the student in finding the erroneous part of the sentence.

Complete answer: Let us analyze the options given to us in this question -
Option (a.), 'a', refers to ‘If you had’ is incorrect as there is no error in this part and it forms an if – clause along with part (b).
Option (b.), ‘b', refers to ‘just hinted at your difficulty’ is incorrect as there is no error in this part and it forms an if – clause along with part (a).
Option (c.), ‘c', refers to ‘I would most certainly help you’ is correct as ‘would…help’ is grammatically incorrect since the verb form should be – would + most certainly (adverb) + have + helped (past participle).
Option (d.), ‘d', refers to ‘NO ERROR’ is incorrect as option (c) has an error in it.
option c is the right answer.
Note: In this question, it will be helpful for the student to recall the concept of subject-verb agreement. They should have a clear understanding of subject, predicate and object. Subject: English