If you help me, I _ grateful.

Correct Answer: (C) will remain Conditional sentences (If-clauses) are one of the most important grammatical topics in NTRCA English. Analysis — Types of Conditional: This is a Type 1 Conditional (Real/Possible Condition): Structure: If + Subject + Present Simple, Subject + will/can/may + base verb Application: "If you help me, I will remain grateful." — The condition "if you help" is possible/real — The result uses "will" → expressing a real future possibility The Four Conditionals: — Zero: If + Present, Present (general truth): "If you heat water, it boils." — Type 1: If + Present, will + base verb (possible future): "If it rains, I will stay home." — Type 2: If + Past, would + base verb (unreal present): "If I were rich, I would travel." — Type 3: If + Past Perfect, would have + past participle (unreal past): "If I had studied, I would have passed." Why others are wrong: ✗ "will be remain" — double auxiliary verb; grammatically wrong ✗ "should remain" — "should" is for obligation/advice, not future results ✗ "would remain" — used for Type 2 (unreal) conditions, not real possible conditions Source: English Grammar in Use — Raymond Murphy; NTRCA Question Bank.