Read the passage below and answer the question that follows. When Kirsten showed up for her geography class, she discovered that her teacher was gone for the day and that the substitute would be showing a video. The students’ assignment was to identify the ecosystem being discussed in the video based on the plants and animals shown. Kirsten made a list of all the species she saw. Her list included blue pines, rhododendrons, yews, blue sheep, snow leopards, and tahrs.

Which region’s ecosystem was discussed in the video?
A.
the steppe and woodlands of Central Asia
B.
the coniferous forests of the Himalayas
C.
the North Indochina tropical forest
D.
Central Asian deserts