Client Risk Tolerance Assessment

Alexander, a chartered financial analyst, is responsible for managing investment portfolios for a diverse clientele. One of his clients, Mrs. Thompson, has been experiencing significant personal financial challenges due to unforeseen medical expenses. During a quarterly review meeting, Mrs. Thompson expresses her concerns about the high-risk investments in her portfolio and requests that Alexander reduce the risk level. However, Alexander believes that the high-risk strategy is necessary to achieve her long-term financial goals.

Considering the ethical obligations involved in his responsibilities to Mrs. Thompson, how should Alexander respond to her request?