Option A will only work if the sentence was "Each size of a pallet is approximately as large as the size of a refrigerator..."
Answer:
Explanation:
It means you need it to survive. You can't survive without oxygen and some would say you can't survive without freedom.
Below are some of the best ways to better protect the confidential information that your business handles.
1. Control access
2. Use confidential waste bins and shredders
3. Lockable document storage cabinets
4. Secure delivery of confidential documents
5. Employee training