Which one of the following sentences is a simple sentence?

Simple Sentence এ সাধারণত in spite of, Despite, Because of, Owing to, too.....to, enough - to, present participle রূপে being, having , v + ing, By / Without / beside + v + ing ইত্যাদি থাকে।

The correct simple sentence is:

✅ "In spite of his poverty, he is happy."

Explanation:

A simple sentence consists of only one independent clause (i.e., a subject and a predicate) and does not contain any subordinate or coordinate clauses.

Analysis of Each Option:

1️⃣ "In spite of his poverty, he is happy." ✅

• This sentence has one subject ("he") and one predicate ("is happy").
• "In spite of his poverty" is a phrase, not a clause.
• Since there is only one independent clause, it is a simple sentence.

2️⃣ "I know that he is rich." ❌ (Complex sentence)

• "I know" (Main Clause)
• "that he is rich" (Subordinate Clause)
• Since there is a dependent clause, it is a complex sentence.

3️⃣ "Do or die." ❌ (Compound sentence)

• "Do" and "die" are two independent clauses joined by "or."
• Since there are two independent clauses, it is a compound sentence.

4️⃣ "I respect him as he loves me." ❌ (Complex sentence)

• "I respect him" (Main Clause)
• "as he loves me" (Subordinate Clause)
• Presence of a dependent clause makes it a complex sentence.

✅ Final Answer:

👉 "In spite of his poverty, he is happy." (Simple Sentence)