Based on a recent technology survey, $42\%$ of smartphone users enable two-factor authentication (2FA) for added security. For each of the following, assume that $15$ smartphone users are randomly selected. What is the probability that exactly $10$ of the selected users have enabled two-factor authentication?

• A. $0.276$
• B. $0.124$
• C. $0.034$
• D. $0.007$

Answer: (C)