Answer:
0
Explanation:
1. Review the definition for a real number: Positive or negative, large or small, whole numbers, fractions or decimal numbers are all Real Numbers
2. Review the definition for a non real number: The numbers which are not real and are Imaginary (such as i or a square root)
3. Your question may be missing an answer choice
4. Since all 4 of these numbers are positive, negative, whole, fraction, or decimal numbers, they are all real. Unless you are missing a number in the answer choices, there are no non real numbers.
But, wait! I may have missed something here. '0' is technically both an imaginary and real number, so it may be the answer to your problem!