Which is correct about warm currents

A) they make landmasses warmer
B) they are denser than cold currents
C) they move from the poles to the equator
D) they are surface currents

All of the options listed are correct about warm currents:

A) Warm currents make landmasses warmer as they transport heat from the equator towards higher latitudes.

B) Warm currents are denser than cold currents because warm water has lower density, causing it to sink less and flow more easily.

C) Warm currents generally move from the poles to the equator, as they carry warmer water towards regions of colder water.

D) Warm currents are surface currents, meaning they occur in the uppermost layer of the ocean.