Considering the answers;
Flexibility
Cost increases
Increased employee performance
Reduced internal service
The answer will be; The cost increases.
BYOD or bring your own device, is a phrase that is widely used to refer to employees who bring their own computing devices, these includes, laptops, tablets, smartphones, to the work place for use and connectivity on the secure corporate network. It benefits include saving money by eliminating the need of buying each employee specific devices and equipment, increases happiness and satisfaction and also boost productivity among other benefits.