A cloud administrator is reviewing the annual contracts for all hosted solutions. Upon review of the contract of the hosted mail solution, the administrator notes the monthly subscription rate has increased every year. The provider has been in place for ten years, and there is a large amount of data being hosted. Which of the following is a barrier to switching providers?
A. Service-level agreement
B. Vendor lock-in
C. Memorandum of understanding
D. Encrypted data
