Which one of the following ocean currents is NOT a cold ocean current?

Which one of the following ocean currents is NOT a cold ocean current?

Canary current
California current
Kuroshio current
Oyashio current
This question was previously asked in
UPSC NDA-1 – 2019
The Kuroshio current is a warm ocean current, while the Canary current, California current, and Oyashio current are cold ocean currents.
– Warm ocean currents generally flow from equatorial regions towards the poles, carrying warmer water.
– Cold ocean currents generally flow from polar regions towards the equator, carrying colder water.
– The Kuroshio is a strong western boundary current in the North Pacific, similar to the Gulf Stream in the Atlantic, bringing warm water northwards.
– The Canary and California currents are eastern boundary currents that flow southwards, carrying cooler water.
– The Oyashio is a subpolar current flowing south from the Bering Sea, bringing cold water to the North Pacific.
Ocean currents play a crucial role in distributing heat around the globe, influencing regional climates, marine ecosystems, and weather patterns. Western boundary currents like the Kuroshio are typically warm, deep, fast, and narrow, while eastern boundary currents like the California and Canary currents are typically cold, shallow, slow, and wide.