"Besides looting all the valuables, the hoodlum also stabbed the pedestrian violently."- This an example of a/an-

• Correct Answer: ক) simple sentence.

• Explanation:
- This sentence contains only one main clause: “the hoodlum also stabbed the pedestrian violently.”
- The phrase “Besides looting all the valuables” is a participial phrase (not a separate clause).
- Hence, there is only one subject (“the hoodlum”) and one finite verb (“stabbed”) - making it a simple sentence.

• Simple sentence:
- A simple sentence has only one independent clause and no dependent clauses.
- অর্থাৎ, একটি Simple sentence -এ শুধুমাত্র একটি clause (one finite verb) থাকে।
- যেমন: I saw him running.

• অন্যদিকে,
• Complex sentence:
- Complex sentence এ প্রধানত একটি prinicpal clause থাকে এবং এক বা একাধিক subordinate clause থাকে।
- Dependent clause বা subordinate clause টি prinicpal clause/main clause -এর উপর নির্ভরশীল থাকে।
- Complex sentence এর subordinate clause -এর শুরুতে সাধারণত if, lest, though, although, as, because, since, that, so that, until, till, unless, when, why, who, which, where, how, before, after, whether, whatever, while, ইত্যাদি বসে।
- যেমন: Though the class was lengthy, it was enjoyable.

• Compound sentence:
- Requires two independent clauses joined by a coordinating conjunction like "and," "but," etc.
- অর্থাৎ, Compound sentence -এ একের অধিক prinicpal clause থাকে যেগুলো coordinating conjunction দ্বারা যুক্ত থাকে তাদেরকে coordinate clause বলা হয়।
- যেমন: Do or die.

• Optative sentence:
- An optative sentence expresses a wish or prayer.
- যেমন: May you succeed!

Source:
1. Cliff's TOEFL.
2. A Passage to the English Language by S.M. Zakir Hossain.