1) Write a function that accepts a C-string as an argument and returns the number of words contained in the string. For instance, if the string argument is Four score and seven years ago the function should return the number 6. Demonstrate the function in a program that asks the user to input a string and then passes it to the function. The number of words in the string should be displayed on the screen. Use the space character as the delimiter between words.

Your output should look like the following:

Enter string (without extra spaces): Four score and seven years ago

Number of words: 6