The risk remaining after extensive diversification is primarily:

A) unsystematic risk.
B) systematic risk.
C) coefficient of variation risk.
D) standard deviation risk.

Coefficient of Variation Risk

A statistical measure used to assess the risk of an investment by calculating the ratio of the standard deviation to the mean return, indicating variability in relation to the expected return.

Unsystematic Risk

Also known as specific risk, it refers to the risk associated with individual assets, distinct from the market's overall movements.

Systematic Risk

The inherent risk associated with the entire market or market segment, which cannot be mitigated through diversification.