The correct answer is option A. "The plant needs very stable weather".
Explanation:
The weather of tropical rainforests is very stable, having high humidity and temperatures that exceed 18 °C during all months of the year. A plant that is endemic to tropical rainforests and dies within a year in temperate forest most likely needs a very stable weather to survive. Temperate forest have very unstable weather, with summers that have an temperature average of 21°C and winter temperatures that are often below freezing.
A plant survives in a tropical rain forest. When placed in a temperate forest, it dies within a year. The most likely characteristic of this plant is it needs very stable weather.
