Which of the Following Statements Opens the File Info

Multiple Choice

Which of the following statements opens the file info.txt for both input and output?

A) dataFile.open("info.txt", ios::in && ios::out) ;
B) dataFile.open("info.txt", ios::in , ios::out) ;
C) dataFile.open("info.txt", input || output) ;
D) dataFile.open("info.txt", ios::in | ios::out) ;