Which of the Following Are Correct Steps to Be Taken

Which of the following are correct steps to be taken when measuring rectal temperature?

A) Place the athlete stomach down with both legs spread apart.
B) If using a flexible digital thermometer, tape can be used to secure it in place.
C) Spread the buttocks and gently insert the thermometer 8 to 10 inches into the rectum.
D) Leave the thermometer in place for 3 mintues.
E) Cover the tip of the glass thermometer or a flexible digital thermometer with lubricating or petroleum jelly.
F) Do not hold a glass thermometer while obtaining the temperature to avoid altering the patient's temperature.