Which of the following declarations correctly creates a c-string that can hold the value "phonebook"
A) char s1;
B) char s1[9];
C) char s1=10;
D) char s1[10];

Question

Quizplus · Accepted Answer

A c-string needs to have enough space to store the string characters and a null terminator. The string "phonebook" has 9 characters, so the array needs to have at least a size of 10 (to store the null terminator '\0' at the end). Option D declares an array of size 10, which is the correct size to hold "phonebook". Options A and C declare a single char variable, which is not enough to hold a full string. Option B declares an array of size 9, which is not enough to hold the null terminator.

Which of the Following Declarations Correctly Creates a C-String That