The image below shows a certain type of global wind: The Earth is shown as a circle. Equator is shown and labeled at 0 degrees. 30 degrees north and south latitudes are shown and labeled. 60 degrees north and south latitudes are shown and labeled. Curved arrows are shown pointing from 30 degrees north and south latitudes towards the equator.

What best describes these winds?

Polar easterlies that curve due to air above poles being relatively cooler
Jet streams that curve due to air above equator being relatively warmer
Trade winds blowing in a curved manner due to the rotation of Earth
Polar westerlies blowing in a curved manner due to Coriolis Effect