The correct answer is Option (2) - of
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in
- Incorrect: The preposition "in" is used to indicate location, position, or state (e.g., "He is in trouble"). It does not fit the context of expressing fear.
- Example: "She is confident in her ability to complete the task."
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of
- Correct: The phrase "afraid of" is standard usage to express fear or apprehension about something.
- Example: "He is afraid of heights."
- Correct Usage Here: "He is afraid of doing this task."
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from
- Incorrect: The preposition "from" is typically used to indicate the source, origin, or separation (e.g., "He ran away from the problem"). It does not convey fear.
- Example: "The noise came from the next room."
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off
- Incorrect: The preposition "off" is used to indicate separation or movement away from something (e.g., "He jumped off the table"). It is not appropriate for expressing fear.
- Example: "He took the book off the shelf."
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