To answer this question, you need to be familiar with recent news about companies shutting down their cloud storage services.
Let's go through each option to understand why it is correct or incorrect:
Option A) Hitachi Data Systems - This option is incorrect because there is no recent news or announcement about Hitachi Data Systems shutting down its cloud storage service.
Option B) Savvis - This option is incorrect because there is no recent news or announcement about Savvis shutting down its cloud storage service.
Option C) Symantec - This option is incorrect because there is no recent news or announcement about Symantec shutting down its cloud storage service.
Option D) Iron Mountain - This option is correct because Iron Mountain recently announced the closure of its cloud storage service. This decision was made to focus on their core business of physical data storage and management.
Therefore, the correct answer is Option D) Iron Mountain.