Final answer:
Company-specific risk is not a source of systematic risk, as it only affects an individual company rather than the entire market. Systematic risk includes market, interest rate, and inflation risks which impact the whole market and cannot be diversified away.
Step-by-step explanation:
The question asks about systematic risk, which refers to the overall risk affecting the entire market or a segment of the market. It's not the risk that affects only a single company or industry. Among the options provided, company-specific risk (also known as unsystematic risk) is not a source of systematic risk, while market risk, interest rate risk, and inflation risk are all examples of systematic risks that cannot be diversified away.
Systematic risk encompasses factors that affect the entire market or economy, and is inherent to all investing. Company-specific risk, on the other hand, is unique to a particular company and can be mitigated through diversification. For example, issues like a company's management decisions, new product launches, or legal troubles represent company-specific risks.