In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
My mother has (1)/ returned back to (2)/ Delhi day before yesterday. (3)/ No error (4)

Correct option is B

· The phrase "returned back" is incorrect because "return" itself means "to come back," so "back" is redundant.
· The correct phrase should be "returned to."
· Correct sentence: "My mother returned to Delhi day before yesterday."
· Rule: Avoid redundant words in sentences. Words like "repeat again" and "return back" are incorrect.
Example : She returned home late at night. She returned back home late at night. (Incorrect)