Final answer:
Real Estate is generally considered the least liquid asset class.
Step-by-step explanation:
The asset class that is generally considered to be the least liquid is Real Estate. Real estate refers to land and the buildings on it, and it typically takes longer to sell compared to other assets. This is because real estate transactions involve legal processes, property inspections, and negotiations, which can take time. Additionally, the demand for real estate can fluctuate, making it less liquid than other asset classes.