Answer: The APT identifies all relevant factors that affect the realized returns on stocks.
Explanation:
Arbitrage pricing theory (APT) is an idea that has to do with the fact when the linear relationship between the macroeconomic variables and the expected return of an asset are analysed, such assets return can be forecasted.
In arbitrage pricing theory, several risk factors are used in determining prices. It also identifies all relevant factors that affect the realized returns on stocks.