Allied Bank Corp. utilizes the janitorial services of Marie's Clean-It Corp. to keep their buildings clean. Marie's provides all the necessary cleaning supplies, training, background security checks (because the crew works after hours), and all other associated expenses. The other available janitorial services do not typically provide security checks, and a client such as a bank would have to hire guards to watch the work of the janitors. If Allied Bank were to consider hiring another cleaning service to replace Marle's, which of the following would the bank incur? A. complementary products
B. favorable quality status
C. high switching costs
D. unfavorable supplier status
E. high employment costs