which of the following is the primary difference between the underlying assumptions of technical analysis and those of fundamental analysis? a) technical analysts believe the trend in security prices is determined solely by the interaction of economic supply and demand. b) technical analysts maintain that stock prices adjust quickly to the dissemination of public information. c) technical analysts argue that the market only weighs irrational factors, and therefore, the psychology of investors will produce a herd effect. d) technical analysts hold that the price of a security is established by the expected investor return and a combination of risk factors.