You are to ask the user: 1) For the name of the input file (CTIM375-Input.dat; a downloadable file)

Two of the menu options (#2 and #3) are unfinished, and you need to complete the code necessary to write to and read from a binary file.  You will need to read through the code to find the functions that are called by these options, and then supply the missing code. How do I get menu 2 and 3 to display properly?the .cpp and .h have the information:.cpp file:  // Corporate Sales Data Outputusing namespace std; #include <iostream>#include <fstream>#include <stdlib.h>#include "HeaderClassActivity1.h" int main() {    Sales qtrSales[NUM_QTRS];    while (true) {        cout << "Select an option: " << endl;        cout << "1. Input data" << endl;        cout << "2. Write data to file" << endl;        cout << "3. Read data from file" << endl;        cout << "4. Display sales" << endl;        cout << "99. End program" << endl;        int menuItem;        cin >> menuItem;         if (menuItem == 1)…

What method do you call to open a text file to read data from it?

i need the answer quickly