Refer to the information provided in Figure 7.4 below to answer the question(s) that follow. 
Figure 7.4
-Refer to Figure 7.4. The marginal product of the fourth worker is
Definitions:
Diversification
Diversification is an investment strategy that involves spreading investments among various financial instruments, industries, and other categories to reduce exposure to any single asset or risk.
Portfolio
A collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including closed-end funds and exchange traded funds (ETFs).
Financial Characteristics
Refers to attributes that describe the financial health, performance, and structure of a company, such as revenue, profitability, debt levels, and liquidity ratios.
Firm's Beta
A measurement of a company's stock market risk compared to the market as a whole; it quantifies the volatility or systemic risk of a firm's shares.
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