Identify the correct statements.

A. The fastest and deepest geostrophic currents are found at the western boundaries of ocean basins.

B. Western boundary currents are more concentrated and eastern boundary currents are more diffusive.

C. Brazil current is the largest of the western boundary currents.

D. Canary, Benguela and Humboldt currents are eastern boundary currents.

Choose the correct answer from the options given below: