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Question: Write a C function that counts the number of occurrences of the character 'w' in a given C-string and provide a step-by-step solution for it. Answer: The function should be written as follows: ```c int count_w_occurrences(char *str) { int count = 0; for (int i = 0; str[i] != '\0'; i++) { if (str[i] == 'w') { count++; } } return count; } ``` The step-by-step solution involves: 1. Writing the function signature: `int count_w_occurrences(char *str);` 2. Initializing a counter variable to store the count of 'w' occurrences: `int count = 0;` 3. Iterating through the C-string using a for loop: `for (int i = 0; str[i] != '\0'; i++) { ... }` 4. Checking for 'w' occurrences and incrementing the count variable inside the loop: `if (str[i] == 'w') { count++; }` 5. Returning the count variable after the loop: `return count;`