A Linux administrator needs to create an image named sda.img from the sda disk and store it in the /tmp directory. Which of the following commands should be used to accomplish this task?

A. dd of=/dev/sda if=/tmp/sda.img
B. dd if=/dev/sda of=/tmp/sda.img
C. dd –if=/dev/sda –of=/tmp/sda.img
D. dd –of=/dev/sda –if=/tmp/sda.img