Identify the segment in the sentence which contains the grammatical error. If there is no error, select 'No error'
Those who are late they will not be allowed in the classroom.

Options

A. Those who are late
B. they will not be allowed
C. inside the classroom
D. No error

Answer

B

Explanation

.They. should be removed from the sentence because .who is a relative pronoun for the main pronoun *those., so there is no need to add an extra pronoun(they) in the same sentence. Hence, those who are late will not be allowed. will be answer.