Identify the correct conditional sentence/s.

a. If it rains, we would stay indoors.
b. If the thief would come into my room, I would hit him.
c. If you had come five minutes earlier, you would have got a seat.

The correct answer is Option C (Only c).

Key Points:
• Rules of Conditional Sentences:
• First Conditional: If + Simple Present, Simple Future (will/can). Sentence 'a' uses 'rains' (present) with 'would' (past modal), which is incorrect. It should be "If it rains, we will stay indoors."
• Second Conditional: If + Simple Past, would + V1. Never use 'would' in the 'if'-clause itself. Sentence 'b' incorrectly places 'would come' inside the 'if'-clause. Correct form: "If the thief came into my room, I would hit him."
• Third Conditional: If + Past Perfect (had + V3), would have + V3. Sentence 'c' follows this structure perfectly: "If you had come... you would have got..."
• Evaluation: Only sentence 'c' is grammatically accurate.
• Official Answer: Option 3 ('Only c') is the official correct option.
• Key Takeaway: Remember: The Third Conditional structure requires 'If + Past Perfect (had + V3)' in the if-clause and 'would have + V3' in the main clause.