Julia,Ann and Jason Are All Part of the Same Organisation,working

Multiple Choice

Julia,Ann and Jason are all part of the same organisation,working in the same department.According to the organisational chart,Ann and Jason have to report to Julia. Based on the available information,they are part of a:

A) Task group and informal group.
B) Command group and formal group.
C) Command group and informal group.
D) Task group and formal group.