Which of the following would have a higher albedo on planet Earth?

The correct answer is B. White polar ice caps.

Albedo refers to the reflectivity of a surface; it is the fraction of sunlight that is reflected back into space. Surfaces that are lighter in color, like white polar ice caps, reflect more sunlight and therefore have a higher albedo compared to darker surfaces, such as dark blue oceans, black asphalt, or green rainforests, which absorb more heat and light.