Which sentence uses commas correctly?
1. In the field behind Grandpa's house was an old, stone wall.
2. The red, brick house had a set of narrow stairs with a long banister.
3. Grandpa spooned strawberries over the warm, sweet-smelling shortcake.
4. Each of the children filled a quart-sizegbasket with ripe, juicy, strawberries.
Explanation: The comma is seperating the different description words ripe, juicy, strawberries. If they werent there it would look like ripe juicy strawberries.