One challenge that marketers face regarding the macroenvironment is that $\_\_\_\_\_\_\_\_.$

A$.$

competitors' actions are not always predictable

B$.$

forces in this environment are stable, so marketers must strive to innovate

C$.$

because changes are predictable, the company has no advantage over competitors

D$.$

changes in this environment are often unforeseeable and uncontrollable

E$.$

because actors in this environment are close to the company, they are sometimes overlooked

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