Pick out the correct sentence:

A. Nobody has no idea who invented the circle
B. Nobody has a idea who invented the circle
C. Nobody has an idea who invented the circle
D. Nobody have the idea who invented the circle

Choose the correct answer from the options given below:

C only

The correct answer is Option (4) → C only

The correct sentence, "Nobody has an idea who invented the circle," is grammatically accurate.

- "Nobody" is a singular pronoun, so the verb should be in the singular form, which is "has" in this case.
- "An idea" is the correct use because "idea" starts with a vowel sound.

The other options contain grammatical errors:

- Option A, "Nobody has no idea who invented the circle," is incorrect because the use of "no idea" with the negative "nobody has no" creates a double negative, which is grammatically incorrect.

- Option B, "Nobody has a idea who invented the circle," is incorrect because "a idea" should be "an idea."

- Option D, "Nobody have the idea who invented the circle," is incorrect because "nobody" is singular, so the verb should be "has" instead of "have," and "the idea" is correct, but "an idea" is more idiomatic in this context.