Which explains how wind causes downwelling in the oceans?
a.
wind systems diverge at a coastline, moving warm surface water away from the coastline. the water piles up and sinks.
b.
wind systems diverge at a coastline moving warm surface water toward the coastline. the water piles up and sinks.
c.
wind systems converge at a coastline moving warm surface water toward the coastline. the water piles up and sinks.
d.
wind systems converge at a coastline, moving warm surface water away from the coastline. the water piles up and sinks.