The Capital Asset Pricing Model (CAPM) is a theoretical representation of the way financial markets behave. It shows that the expected return of an asset is equal to the risk-free rate plus a risk premium. The risk premium is the expected return of the market as a whole minus the risk-free rate, multiplied by the asset's beta. Beta is a measure of how much the asset's returns move relative to the market's returns. If an asset's returns are positively correlated with aggregate consumption or wealth, it means that the asset's returns tend to increase when the economy is doing well and decrease when the economy is doing poorly. This is a risky situation for investors because they could lose money if the economy goes into a downturn. Therefore, investors require a risk premium to compensate them for this risk. The risk premium is the extra return that investors expect to earn to compensate them for the risk of holding the asset. Therefore, assets whose returns are positively correlated with aggregate consumption or wealth will earn a risk premium.

Choice A is incorrect. The return on assets that exhibit a positive correlation with aggregate consumption or wealth is not necessarily equivalent to the rate of the GDP. While GDP may reflect overall economic activity, it does not directly determine individual asset returns in the CAPM framework.

Choice C is incorrect. The risk-free rate of return is typically associated with an investment that has no risk, such as a government bond. Assets that are positively correlated with aggregate consumption or wealth carry some level of risk and therefore would require a return above the risk-free rate according to CAPM.

Choice D is incorrect. A return equivalent to the rate of inflation does not accurately describe returns on assets that exhibit a positive correlation with aggregate consumption or wealth according to CAPM. Inflation affects all investments and does not specifically relate to these types of assets.