Is the angular position of the first-order spectrum small enough for sinθ≈θ to be a good approximation?

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds

Ibelieve that the correct answer is: c. along plate boundaries

The best answer i can think of is b

Ansa new gas is observed in the form of bubbles;