What method does Malcolm initially use to test Macduff's loyalty, and why is he so suspicious of Macduff Cite details from The
Tragedy of Macbeth, Act IV, to support your answer,

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation: