Read the sentence carefully and identify what kind of conjunction the underlined word is :
"He is saving some amount each month so that he can pay his college fees".

The correct answer is Option A (Compound conjunction).

Key Points:
• Core Language Concept Tested: The question tests the candidate's understanding of the classification of Conjunctions. Identifying whether a conjunction is compound, correlative, coordinating, or subordinating is a standard MPSC grammar testing area.
• Why the Correct Option is Right: The official MPSC answer key marks option 1, "Compound conjunction", as the correct answer. In traditional English grammar classification taught in Indian educational systems, when a conjunction is formed by a group of two or more words functioning together as a single conjunction (e.g., *so that, in order that, as soon as, provided that*), it is specifically categorized as a 'Compound Conjunction'. Even though it functions syntactically to create a subordinate clause, its structural classification is 'compound'.
• Common Exam Traps and Pitfalls: A highly common mistake candidates make here is selecting 'Subordinating conjunction' because 'so that' does indeed introduce a subordinate adverbial clause of purpose. However, MPSC often asks for structural classification when a phrase acts as a single conjunction.
• Elimination of Incorrect Options: Correlative conjunctions always appear in pairs separated by words (e.g., either...or, not only...but also). Coordinating conjunctions (FANBOYS) connect equal elements. By recognizing that 'so that' is a multi-word unified conjunction, the structural label 'Compound conjunction' takes precedence in this specific exam context.
• Preparation Strategy: Be aware of structural classifications in grammar books like Wren & Martin, where phrases acting as conjunctions are listed distinctly as compound conjunctions.
• Key Takeaway: Remember: Multi-word conjunction phrases acting as a single unit (like 'so that', 'in order that') are classified structurally as Compound Conjunctions.