An employee starts the execution of an OLAP application that uses a lot of computational resources while executing.​ Normally, this application runs overnight when resources are not heavily​ used, but this time it is executed during prime work time. As a​ result, order-entry transactions are unable to be completed. This type of human error is termed​ __________.

(A) spoofing
(B) spamming
(C) spoofing
(D) denial of service
(E) hacking