Answer:
A. taiga
Explanation:
The ecosystem with evergreen coniferous trees is called taiga. Taiga, also known as boreal or coniferous forest, is a biome in the northern hemisphere mainly in Canada, Russia and Scandinavia. It has long cold winters and short cool summers. The most common plants are spruces firs pines larches that tolerate severe winter conditions such as heavy snowfall freezing temperatures; these have needle-like leaves which stay green all year round (hence the name “evergreen”). This environment harbors a wide array of wildlife including large mammals like bears wolves moose etc., small animals such as rabbits squirrels etc., migratory birds and various plant species adapted to extreme cold weather patterns.