Identify the part of speech of the highlighted word in the following sentence.
I cannot give him credit for this.

Correct option is A

Correct answer: (a) Preposition
Explanation (in detail):
• The highlighted word “for” shows a relationship between “credit” and “this”.
• It tells why/for what the credit is being given → “credit for this” (this = reason/action).
Grammatical Rule (English):
• A preposition is a word placed before a noun/pronoun to show relation (for, to, of, with, etc.).
व्याकरणिक नियम (Hindi):
• Preposition (संबंधबोधक अव्यय) वह शब्द है जो संज्ञा/सर्वनाम से पहले आकर संबंध बताता है; जैसे “credit for this” में “for” संबंध दर्शा रहा है।
Hence, option (a) is the correct answer.