How does the “circle of safety” work in the modern days？ （More than one correct answe

How does the “circle of safety” work in the modern days？ (More than one correct answer)

A.It could be the ups and downs in the economy.

B.It could be the uncertainty of the stock market.

C.It could be a new technology that renders your business model obsolete overnight.

D.It could be your competition that is sometimes trying to kill you.