ANSWER: a. Avoid touching it except to kick it open
Step-by-step explanation: In the event of fire, the best way to determine if a door is safe to open or not is by avoiding to touch and check it and rather one can kick it to open. There are many reasons for this, first is checking if the door is safe to open with hand may injure the hand and cause burns on the skin. The second reason is kicking the door will distance the body from the door making a safe distance between the two. Third reason is in the event of fire, doors may get locked and may be impossible to open just by a push of the hand. So, it is best to kick the door to open.