The correct answer is: d) Do not include this incident in your Clery Act statistics as it is not a Clery crime
If a perpetrator steals an item from an area of open access (i.e., there is no unlawful entry), the incident is a Larceny.
Since the perpetrator was invited into the room, this is considered a Larceny, which is not a Clery Act crime unless it’s motivated by bias.