The correct answer is (D)
Junipers belongs to genus Juniperus and are coniferous plants. These plants are widely distributed in northern hemisphere, from Arctic, south to tropical Africa and from Ziarat to Tibet, and in mountains of central America.
Juniper is a shrubs and grow densely over an area, shrubs are a great way to deter foot traffic through an area( another contributor to soil erosion). It helps to prevent soil erosion and are easy to grow plants.
The cells that are transformed into plasma cells with the influence of cytokines are T-Helper cells. It is a very important cell in our immune system and it is used to activate antibodies that could help destroy microbes and pathogens entering the body. They are commonly produced in the bone marrow.
It prevents the trasmission of impulse across the synapes