How should this problem best have been avoided?

You are an intern for a company that has all of its hardware and software on-site. Due to a severe
storm, the company did not have power for several days, and important data was lost.
How should this problem best have been avoided?

A.
by providing greater storage capacity

B.
by distributing component services across multiple systems

C.
by providing physical and data redundancy

D.
by allowing for more scalability