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

Ocean currents are classified as warm or cold based on their temperature relative to the surrounding waters. The Canary current is a cold current flowing along the coast of Spain and North Africa [3]. The California current is a cold current moving along the west coast of the USA [2]. The Oyashio current, also known as the Kurile current, is a cold current that transports Arctic water southward into the Pacific [2]. In contrast, the Kuroshio current is a warm current. It originates from the North Equatorial current off the Philippines and flows northward toward the sub-tropical high-pressure belt [3]. Warm currents typically travel from the equator toward the poles along the eastern coasts of continents in low to middle latitudes, which characterizes the Kuroshio system. Therefore, the Kuroshio current is the only warm current among the options provided.

Sources

1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 32: Ocean Movements Ocean Currents And Tides > Canary Current – Cold > p. 492
2. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 32: Ocean Movements Ocean Currents And Tides > Moderating Effect > p. 497
3. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 32: Ocean Movements Ocean Currents And Tides > Kuroshio Current – Warm > p. 490