Final answer:
A Money Market Mutual Fund is designed to provide moderate income while preserving capital and liquidity, investing primarily in short-term, low-risk securities.
Step-by-step explanation:
The type of fund that aims to achieve moderate income and preserve capital and liquidity primarily through investment in instruments such as near-cash securities is known as a Money Market Mutual Fund. These funds focus on maintaining liquidity by investing in short-term financial instruments like government bonds, treasury bills, bankers' acceptances, commercial paper, and certificates of deposit. The objective of these funds is to offer investors a safe place to invest easily accessible, cash-equivalent assets with a low level of risk compared to other types of funds.