Consider the following statement.string str = "This summer we will drive across the country!";What is the output of the following statements? (Assume that all parts are independent of each other.) a. cout << str.size() << endl;b. cout << str.substr(12, 20) << endl;c. string::size_type ind = str.find('s');str.replace(ind + 2, 6, "spring");cout << str << endl;d. str.erase(20, 25);str.insert(20, "enjoy Caribbean cruise!");cout << str << endl;

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Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.