Spunky and full of spirit (A)/, the little girl is known (B)/ for always doing things that (C)/ others are afraid to does (D)/.

The correct answer is Option D.

This is an Error Detection question. We need to identify which part of the sentence contains a grammatical error.

Let us read the full sentence carefully:

"Spunky and full of spirit (A), the little girl is known (B) for always doing things that (C) others are afraid to does (D)."

Step 1: Analyze each part of the sentence.

Part A – "Spunky and full of spirit"
This is a participial/adjectival phrase modifying "the little girl." It is grammatically correct.

Part B – "the little girl is known"
The subject is "the little girl" (singular) and the verb is "is known" (passive voice, singular). This is grammatically correct.

Part C – "for always doing things that"
The use of "for always doing" is correct as a gerund phrase, and "that" is correctly used as a relative pronoun introducing a clause. No error here.

Part D – "others are afraid to does"
Here lies the error. The word "does" is incorrect. After the infinitive marker "to", we must always use the base form of the verb (the bare infinitive). "Does" is the third-person singular simple present form, which cannot follow "to."

Step 2: Identify the rule being tested.

The grammatical rule is: "to" + base form of the verb (infinitive structure).

The phrase should be: "others are afraid to do" — not "to does."

Step 3: Correction.

❌ Incorrect: others are afraid to does
✅ Correct: others are afraid to do

Conclusion: The error is in Part D. The verb "does" must be replaced with the base form "do" to correctly form the infinitive "to do."