People may appear to use rules of? thumb, as suggested by the assumption of bounded? rationality, even though they may really be behaving in a manner suggested by the rationality assumption if .....

A. they face very different choices over a short period of time.

B. they are seen to ignore substantial changes in the circumstances they face.

C. they are seen to adjust their behaviors when they face sufficiently altered circumstances.

D. they face persistently predictable range of choices for a period of time.