The traditionally teen-friendly app now counts 14% of smartphone users who are 35 or older as users, as compared to 67.5% of users ages 18 to 24. It remains to be seen whether the arrival of older users will be a turnoff for Snapchat’s core audience.
Can we infer the following?
No users are between the ages of 18 and 24.

Select from the following.
[a]. Yes;
[b]. It's impossible to say;
[c]. No;
The answer is:
[c].