Final answer:
The taiga's shortened growing season due to The taiga had harsh winters, limiting the time for crop growth. The correct answer is A.
Step-by-step explanation:
Agricultural life in the taiga is challenging primarily due to the short growing season that results from its harsh winters. The taiga's growing season is significantly limited when compared to other biomes, as the climate entails long and cold winters with a brief summer period.
During the growing season, there are nearly 24 hours of daylight, which allows for rapid plant growth, but the overall time is insufficient for many crops to develop fully before the onset of the next winter season.
Moreover, the perma frost in areas like the Arctic tundra, which is a characteristic also found in the taiga biome, makes it difficult for roots to penetrate deep into the soil and hinders the decay of organic matter, leading to a slower release of nutrients that are crucial for agriculture.
These conditions, along with the potential for climate-related issues such as pest infestations due to shorter, milder winters, pose significant challenges to agriculture in the taiga. The correct answer is A.