Correct option is C
Option (c) being contains an error.
Explanation:
- The phrase "has not being making" is incorrect because ‘being’ is not used in the present perfect continuous tense.
- The correct form should be "has not been making", as the sentence describes an action that started in the past and continues in the present.
Corrected sentence:
The Dutta company has not been making new school bags since the lockdown commenced.
Grammatical Rule Used:
- Present Perfect Continuous Tense:has/have + been + verb-ing is the correct structure.
- Example: "She has been studying for the exam since morning."
Why the other options are correct:
- (a) since – Correct, as it is used to indicate the starting point of the action.
- (b) has not – Correct, as it properly negates the verb in the present perfect continuous tense.
- (d) commenced – Correct, as it means "began" and is appropriate in the context.
Thus, the correct replacement is "been" instead of "being".