आलसी होने के कारण उसने अवसर खो दिया।' उक्त सरल वाक्य को संयुक्त वाक्य में रूपान्तरित कीजिए :

Question

Accepted Answer

Option 4, "वह आलसी था; इसलिए उसने अवसर खो दिया," is the correct conversion of the simple sentence "आलसी होने के कारण उसने अवसर खो दिया" into a compound sentence. Here's why:

*   **Why Option 4 is Correct (Compound Sentence):** A compound sentence consists of two or more independent clauses joined by a coordinating conjunction (जैसे कि और, लेकिन, या, इसलिए, आदि). In Option 4, we have two independent clauses: "वह आलसी था" (He was lazy) and "उसने अवसर खो दिया" (He lost the opportunity). These clauses are joined by the coordinating conjunction "इसलिए" (therefore/so). This structure perfectly fits the definition of a compound sentence. The "इसलिए" clearly shows the cause-and-effect relationship implied in the original simple sentence.

*   **Why Option 1 is Incorrect (Simple Sentence):** "आलसी बनकर अवसर खो दिया" (Having become lazy, he lost the opportunity) is a simple sentence. It contains only one independent clause and the phrase "आलसी बनकर" acts as an adverbial phrase modifying the verb "खो दिया". It doesn't have the two independent clauses connected by a coordinating conjunction that are required for a compound sentence.

*   **Why Option 2 is Incorrect (Simple Sentence):** "आलसी बनने पर उसने अवसर खो दिया" (Upon becoming lazy, he lost the opportunity) is also a simple sentence. Similar to Option 1, it has only one independent clause and "आलसी बनने पर" functions as an adverbial phrase. It lacks the structure of a compound sentence.

*   **Why Option 3 is Incorrect (Complex Sentence):** "जैसे ही वह आलसी हुआ, अवसर खो गए" (As soon as he became lazy, the opportunities were lost) is a complex sentence. It contains one independent clause ("अवसर खो गए") and one dependent clause ("जैसे ही वह आलसी हुआ") introduced by the subordinating conjunction "जैसे ही". This structure is characteristic of complex sentences, not compound sentences. The subject of the second clause also changes from "he" to "opportunities," which is a subtle but significant shift in meaning compared to the original sentence.