Final answer:
The most appropriate advice for Penny would be to diversify her bond portfolio to reduce risk and secure a steady income stream.
Step-by-step explanation:
To achieve Penny's goal of investing in corporate bonds that have a relatively low level of risk and offer a steady income stream, the most appropriate advice would be to diversify her bond portfolio. Diversification involves investing in a mix of different corporate bonds from various companies. By spreading her investment across multiple bonds, Penny can reduce the risk associated with any individual bond defaulting and potentially losing her investment.
By choosing bonds from different companies, Penny can ensure that even if a few firms go bankrupt and do not pay, they are not all likely to go bankrupt. This strategy minimizes the risk of losing the entire investment. Additionally, diversifying her bond portfolio allows Penny to benefit from the potential steady income stream provided by different bonds.