5. Sentence Capitalizer Write a function that accepts a pointer to a C-string as an argument and capitalizes the first character of each sentence in the string. For instance, if the string argument is "hello. my name is Joe. what is your name?" the function should manipu-late the string so it contains "Hello. My name is Joe. What is your name?" Demonstrate the function in a program that asks the user to input a string and then passes it to the function. The modified string should he displayed on the screen. Optional Exercise: Write an overloaded version of this function that accepts a string class object as its argument.