In the following statement, what does int mean?
```
int *ptr = nullptr;
```
a. The variable named *ptr will store an integer value.
b. The variable named *ptr will store an asterisk and an integer value
c. ptr is a pointer variable and will store the address of an integer variable.
d. The variable named *ptr will store the value in nullptr.
e. None of these
c. ptr is a pointer variable and will store the address of an integer variable.
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