Identify the part of speech of the highlighted word:
Stop playing.

Correct option is B

Correct answer: (b) Noun
Important point: “playing” is a Gerund (verb + ing used as a noun).
Explanation:
• In “Stop playing”, stop is the main verb.
• playing names an activity and works as the object of “stop”.
• Therefore, it functions as a noun (gerund).
Example: Stop talking. (talking = gerund/noun)
Grammatical Rule (English):
• Gerund = V-ing form used as a noun (subject/object/complement).
व्याकरणिक नियम (Hindi):
• जब verb + ing किसी कार्य/वस्तु की तरह (कर्ता/कर्म) प्रयोग हो, तो वह Gerund (संज्ञा) कहलाता है।
Why other options are incorrect:
• (a) Participle → participle adjective की तरह noun को describe करता है; यहाँ “playing” object है।
• (c) Conjunction → जोड़ने का काम करता है; यहाँ नहीं।
• (d) Interjection → अचानक भावना; यहाँ नहीं।
Hence, option (b) is the correct answer.