Suppose that only file descriptors 1 (stdout), 3 (a read connection from filel ) and 4 (a write connection to filel ) are in use. All others are closed. In this situation, first dup(1) is called....

Extracted text: Suppose that only file descriptors 1 (stdout), 3 (a read connection from filel ) and 4 (a write connection to filel ) are in use. All others are closed. In this situation, first dup(1) is called. Select all the claims that are correct in this situation. write(0, "Ahoy!", 5); writes to the terminal screen. write(0, "Ahoy!", 5); fails and produces an error. write(1, "Ahoy!", 5); writes to the terminal screen. write(1, "Ahoy!", 5); fails and produces an error. write(2, "Ahoy!", 5); writes to the terminal screen. write(2, "Ahoy!", 5); fails and produces an error.