What Information Should Be Noted About Unusual Odors During a Fire

What information should be noted about unusual odors during a fire investigation?

A) If the odor was not present during the fire
B) If the odor has an aroma of something similar to smoke
C) If the odor can be detected after coming out of the smoke
D) If the odor is more than 20 feet (6.1 m) outside of the structure