Why does the file stream member function open's second argument exist?

13. Write function quote() that takes as input the name of a file (as a string) and anindex i (as an integer). The file will contain quotes, one per line. The function shouldopen the file, read the file, close the file, and return the i-th quote (i.e. the i-th line in thefile), assuming that the quote numbering starts at 0. Test your solution onfile Wilde_Quotes.txt.>>> quote("Wilde_Quotes.txt", 5)'At twilight, nature is not without loveliness, thoughperhaps its chief use is to illustrate quotations from thepoets.\n'>>> quote("Wilde_Quotes.txt", 0)'A little sincerity is a dangerous thing, and a great dealof it is absolutely fatal.\n'>>> quote("Wilde_Quotes.txt", 23)'Patriotism is the virtue of the vicious. \n'>>>

In C++ Create a program that outputs 10 strings (that the user inputs) to a file.

Please use C++ code and only use the libraries <iostream> and <fstream>.  Thank you!