Which of the Following Statements About Anthony's Triangle Is Appropriate

Multiple Choice

Which of the following statements about Anthony's Triangle is appropriate?

A) Transaction processing systems are at the middle level of Anthony's Triangle;
B) Operational information systems are at the bottom level of Anthony's Triangle;
C) Management information systems (MIS) are the bottom level systems;
D) Expert support systems (ESS) are middle level systems;
E) Information provided by top-level systems is always operation-oriented.