The two distinctly different parts of the movement of stock returns are:

A) market risk and systematic risk.
B) business-specific and unsystematic risk.
C) unsystematic risk and systematic risk.
D) All of the above

Unsystematic Risk

is the type of risk that is specific to a particular company or industry, and can be mitigated through diversification.

Systematic Risk

The risk inherent to the entire market or market segment, which cannot be eliminated through diversification.

Stock Returns

The earnings generated by investing in stocks, typically expressed as a percentage of the investment's original value.