What is the relationship between price and quantity in the supply curve?

The supply curve is positively sloped, meaning that as the price of a good increases, the quantity supplied also increases.
The supply curve is negatively sloped, meaning that as the price of a good increases, the quantity supplied decreases.
The supply curve is a straight line, meaning that there is no relationship between price and quantity.
The supply curve is a horizontal line, meaning that the quantity supplied remains constant regardless of the price.