Answer:
c. Cable locks
Explanation:
The most effective and inexpensive method would be cable locks, these are locking mechanisms which can be anchored to the laptop's location. These locks are very inexpensive and will prevent individuals from being able to take the laptops from the organization. Other options such as password protection and encryptions would not work because individuals would still take the laptops and wipe the drives or use them for parts that are still valuable.