Hierarchic escalation is best described as?

A.
Notifying more senior levels of management about an Incident
B.
Passing an Incident to people with a greater level of technical skill
C.
Using more senior specialists than necessary to resolve an Incident to maintain customer
satisfaction
D.
Failing to meet the Incident resolution times specified in a Service Level Agreement
Page 245 ITIL3 Service Opearation
Hierarchic Escalation
(Service Operation) Informing or involving more senior
levels of management to assist in an Escalation.