Which value can be entered to cause the following code segment to display the message "That number is acceptable"?

```
int number;
cin >> number;
if (number > 10 && number < 100)
cout << "That number is acceptable.\n";
else
cout << "That number is not acceptable.\n";
```

a. 100
b. 10
c. 99
d. 0
e. all of these

c. 99