C. Balanced.
Step-by-step explanation:
When the quantity supplied is the same as the quantity demanded, the market is balanced.
This is called a market equilibrium, the supply and demand are equal. The quantity that is being supplied is equal to the quantity being demanded, the market is at equilibrium because one is not exceeding the other.
Market equilibrium is quite rare and will never stay steady at equilibrium, but the market is continuously moving towards it and often exceeds it.