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

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

Here's why:

1. gets(): This function is used to read a line from the standard input (keyboard) and store it in an array of type char. It can read multi-word strings as it does not stop reading input on encountering the first white space.

2. puts(): This function is used to write a string to the standard output (screen). It is not used for reading strings.

3. printf(): This function is used to output a string to the standard output. Like puts(), it is not used for reading strings.

4. scanf(): This function is used to read input from the standard input. However, it stops reading input on encountering the first white space, so it is not suitable for reading multi-word strings.

Therefore, gets() is the most appropriate function for reading in a multi-word string.