Which of the Following Is a Reason Why Acquisitions,a Mode

Which of the following is a reason why acquisitions,a mode of entering foreign markets,fail?

A) There is a clash between the cultures of the acquiring and acquired firm.
B) Acquisitions take a long time to execute.
C) Acquisitions are easily preempted by making greenfield investments.
D) The revenue and profit stream generated by an acquisition's resources is usually unknown.
E) Losses produced by intangible assets outweigh profits from acquired tangible assets.