Concept:A prime number has exactly two distinct factors: 1 and itself. The number 1 is neither prime nor composite because it has only one factor.
Explanation:List the smallest numbers: 0 has infinite factors, so it is not prime.
1 has only one factor (1), so it is not prime.
2 has two factors (1 and 2), so it is the smallest prime number.
3 also has two factors (1 and 3), but 2 is smaller.
Thus, the smallest prime number is 2. Note that 2 is the only even prime.
Answer:C. two