Identifying Market Participants: Liquidity Providers

In the context of equity markets, different participants interact based on their roles and strategies. Some market participants are primarily involved in liquidity provision, while others may engage in speculative trading or serve as market-makers. Understanding these roles is essential for analyzing market functionality and efficiency.

Which of the following market participants is primarily known for providing liquidity to the market by executing trades at quoted prices without attempting to profit from short-term price fluctuations?