To open a file with a user supplied name, you would need to store the name in a variable. If the file name was to have no more than 20 characters in it, which would be an appropriate declaration of the file name variable?
A) char filename;
B) char filename20);
C) char filename[20];
D) char filename[21];

Question

Quizplus · Accepted Answer

To store a string of up to 20 characters in C, you need an array of 21 characters to include the null terminator ('\0') that marks the end of the string.

To Open a File with a User Supplied Name, You