Final answer:
Exchange rates represent an economic factor in a firm's external general environment.
Step-by-step explanation:
The economic factor in a firm's external general environment is represented by d) Exchange rates. Exchange rates refer to the value of one currency compared to another, and they can greatly impact a firm's international trade and competitiveness. When exchange rates fluctuate, it affects the cost of importing and exporting goods, making it either more expensive or cheaper for a firm to conduct business with other countries.