Unix or Linux: The line break in Unix or Linux systems is represented by the ASCII character $"$

$".$ This character is used to move the cursor to the beginning of the next line when printing text.Dos or Windows: The line break in Dos or Windows systems is represented by the ASCII characters $"\backslash$r

$".$ This is a combination of the carriage return character $"\backslash$r$"$ and the line feed character $"$

$".$ The carriage return moves the cursor to the beginning of the current line, and the line feed moves the cursor to the beginning of the next line.Mac: The line break in Mac systems is represented by the ASCII character $"\backslash$r$".$ This character is used to move the cursor to the beginning of the next line when printing text.Correct answer: Unix or Linux $-"$

$",$ Dos or Windows $-"\backslash$r

$",$ Mac $-"\backslash$r$".$