If a caller reports that a rusty grenade is found under the porch, which of the following is the most appropriate initial action

A) Instruct the caller to handle the grenade cautiously and attempt to move it to a safer location.
B) Advise the caller to ignore the object, as it is likely harmless if it appears rusty.
C) Evacuate the area immediately and call local law enforcement or bomb disposal units.
D) Recommend the caller to take a photograph and post it on social media to seek advice from the community.