Select the option that contains the error. If you don’t find any error, mark ‘No error’ as your answer.
Since his son has not yet completed the age of eighteen, he was reluctant to fulfil his son’s demand of getting a motorbike.

Correct option is D

Option (d) "he was reluctant" contains an error.
Explanation:
The sentence starts with "Since his son has not yet completed..." which is in the present perfect tense (has not yet completed). However, the second clause "he was reluctant" is in the past tense (was). This is incorrect because both clauses should be in the same tense for consistency.
Correct sentence: Since his son has not yet completed the age of eighteen, he is reluctant to fulfil his son’s demand of getting a motorbike.
Grammatical rule used:
When using "Since" to indicate a reason in the present perfect tense, the following clause should be in the present tense for consistency.
Explanation in Hindi:
पहला भाग "has not yet completed" (Present Perfect) में है, लेकिन दूसरा भाग "he was reluctant" (Past Tense) में है। वाक्य में tense consistency होनी चाहिए, इसलिए "he is reluctant" सही होगा।