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'.
He has been (1)/ working here (2)/ for quite some time. (3)/ No Error (4)

Explanation:
· There is no grammatical error in this sentence.
· The present perfect continuous tense ("has been working") is correctly used for an action that started in the past and is still continuing.
· Example: She has been studying for two hours.
Final sentence: No error in the given sentence.