Final answer:
A stock with a beta of 3 has the greatest systematic risk compared to stocks with betas of 0.5, 2, and 1.5, as it suggests higher volatility in relation to the market.
Step-by-step explanation:
The subject of the question deals with the concept of beta, which is a measure of a stock's volatility in relation to the overall market. A beta of 1 indicates that the stock's price will move with the market. A beta less than 1 suggests that the stock is less volatile than the market, while a beta greater than 1 indicates that the stock is more volatile than the market. Therefore, a stock with a beta of 3 would have greater systematic risk compared to stocks with betas of 0.5, 2, and 1.5, as it implies the stock is expected to be three times as volatile as the market.