Which of the following function is more appropriate for reading in a multi-word string? ans. scanf() printf() gets() puts()

The most appropriate function for reading in a multi-word string in C is gets().

Here's why:

1. scanf(): This function reads the input from the user until it encounters a whitespace. So, it's not suitable for multi-word strings.

2. printf(): This function is used to print the output, not to read the input.

3. gets(): This function reads a line from stdin into the buffer pointed to by s until either a terminating newline or EOF. So, it's suitable for multi-word strings.

4. puts(): This function is used to write a string to stdout up to but not including the null character. So, it's not used to read the input.

So, the answer is gets().