If the supply of a good increases and the demand stays const

If the supply of a good increases, and the demand stays constant:

There is an increase in both equilibrium price and equilibrium quantity

Equilibrium price increases, and equilibrium quantity decreases

Equilibrium price decreases, and equilibrium quantity increases

There is a decrease in both equilibrium price and equilibrium quantity

Solution

Equilibrium price decreases and equilibrium quantity increases.

Explanation:

The supply increase will shift the supply curve to the right and with no change in demand, there will be surplus in the market resulting in the price to fall down. And also, the quantity sold will increase with the increase in supply.