Which sentence uses commas correctly?
AOn August 15, 1987 we left our house in the big city.
BOn August, 15 1987 we left our house in the big city.
COn August 15 1987, we left our house in the big city.
DOn August 15, 1987, we left our house in the big city.
AOn August 15, 1987 we left our house in the big city.
BOn August, 15 1987 we left our house in the big city.
COn August 15 1987, we left our house in the big city.
DOn August 15, 1987, we left our house in the big city.