Final answer:
AIS reports should be consistent in at least three ways, except for consistency with general accounting practice.
Step-by-step explanation:
The correct answer is 4) With general accounting practice.
AIS reports should be consistent in three ways: 1) over time, 2) across firms, and 3) across departmental or divisional levels. These three ways ensure that the information presented in the AIS reports is reliable and comparable.
However, consistency with general accounting practice is not specifically required for AIS reports. AIS reports may follow specific industry standards or regulatory requirements, which may differ from general accounting practice.