What is an example of the indirect damage caused by this fire?

There was a fire in a branch of the company Midwest Insurance. The fire department quickly arrived at the scene and could extinguish the fire before it spread and burned down the entire premises. The server, however, was destroyed in the fire. The backup tapes kept in another room had melted and many other documents were lost for good.

What is an example of the indirect damage caused by this fire?
A . Melted backup tapes
B . Burned computer systems
C . Burned documents
D . Water damage due to the fire extinguishers

Answer: D