External environment consists of general environment, industry (or task environment), and competitor environment. Which one is NOT correct with regard to these three environments? O a. The events that occur in the general environment can be either an opportunity or a threat depending on the extent to which a firm is prepared for. O 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 environment 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 mix. Clear my choice