Fill in the blank with the correct preposition.
I am indebted ______ you for all the help you have given me.

Correct option is C

The correct option to fill in the blank is (c) to.
Detailed Explanation (English):
• The word “indebted” is used to express gratitude or obligation because someone helped you.
• The correct and standard collocation is indebted to someone.
• Therefore, “indebted to you” is grammatically correct and conveys the intended meaning.
Correct sentence: I am indebted to you for all the help you have given me.
Grammatical Rule Used (English):
• Some adjectives take fixed prepositions (collocations).
• “Indebted” takes to when followed by a person: indebted to + person.
Grammatical Rule Used (Hindi):
• कई adjectives के साथ preposition fixed होता है।
• “indebted” के साथ सही preposition to आता है: indebted to someone (किसी का आभारी/ऋणी होना)।
Meanings of the other options:
• (a) With: “के साथ” (सामान्य साथ/संबंध), यहाँ collocation नहीं बनता
• (b) Towards: “की ओर” (रुझान/दिशा), “indebted towards” standard नहीं है
• (d) On: “पर” (स्थिति/आधार), यहाँ गलत है
Example: I am indebted to my parents for their support.