In my opinion, the correct answer among the choices listed above is option D. Hydrogenous sediment is made up of minerals that crystallize directly from ocean waters. They are produced when minerals reacts chemically with seawater.
They may be Fault Lines or boundaries of Continental Plates.
Explanation:
A warm front is indicated on the line by red semi-circles pointing away from the warmer air and pointing in the direction towards which the warm air is moving. Along sections of the polar front, cold and warm air masses may move differentially with for one another.