External environment consists of general environment, industry $($or task environment$),$ and competitor environment Which one is Not correct with regard io these three environments?

o$.$ The events that occur in the general environment can be either an opportunity or a threat depending on the extent to which a form is prepared for.

b$.$ Competitors who immediately affect your firm are a single force that determines the earnings of your firm in the industry.

c$.$ The events that happen in the general envionment will indirectly affect your firm through industry and competitor environment.

d$.$ Demographic segment of the general environment includes a population's size, age structure, and ethnic mice