Final answer:
To protect their fixed assets, companies should implement a combination of physical barriers such as security cameras, fencing, access control systems, and alarm systems, choosing 'All of the above' as the correct response. Option E is correct.
Step-by-step explanation:
In order to protect their fixed assets, companies should implement multiple physical barriers. These include: Security cameras, which provide surveillance and act as a deterrent to unauthorized access; Fencing, which creates a physical barrier to entry; Access control systems, which regulate who can enter or access certain areas; and Alarm systems, which alert to unauthorized entry or other security breaches.
Therefore, the correct answer to the question of which physical barriers should be implemented to protect a company's fixed assets is E. All of the above.
These measures are not only effective individually but can also work in unison to provide a multi-layered security approach. For example, access control systems can be integrated with alarm systems for enhanced security, and security cameras can help monitor fencing perimeters for any breaches or suspicious activities.