Answer :
Answer:
All of the above.
Explanation:
The hypothesis of an efficient market can be defined as the statement that financial markets are efficient in relation to information, that is, the prices of securities must reflect all available information. This hypothesis holds that the expected return on a security is equal to the return on equilibrium, which means that an agent is not able to achieve returns above the market average, as his returns would be consistent with the public information that must be available at the time that the investment is made.
So all of the above are true.