Answer:
The correct option is B) Nutrients
Explanation:
The availability of nutrients is very essential for a producer to survive. If nutrients will not be available, then the plant will not be able to carry out the essential processes which are required for its healthy living. The primary producers like plants take up nutrients from the soil.
Although, temperature and altitude also have an effect on the primary productivity but they can maintain homeostasis and hence these features will not affect that plant as much as the availability of nutrients.
