Answer:
Immune reaction.
Explanation:
Plasma cell disorders are generally uncommon. They begin at that time when a single plasma cell multiplies excessively. This results in a group of genetically identical cells (called a clone), which produces a large quantity of a single type of antibody (immunoglobulin). Plasma cells develop from B cells (B lymphocytes), which is a type of white blood cell that usually produces antibodies. These proteins help the body to fight against infection. This means they help in the immune system.
In plasma cell disorders, one clone of plasma cells repeatedly multiply, which can’t be controlled. As a result, these clone creates a vast amount of a single antibody (monoclonal antibody) which is known as the M-protein. In some cases (such as with monoclonal gammopathies), the antibody produced remains incomplete, consisting of only light chains or heavy chains (fully functional antibodies usually comprised of two pairs of two different chains called a light chain and heavy chain). The abnormal plasma cells and the antibodies which they produce are limited to one type, and levels of other kinds of antibodies that help in the fight against infections start falling.
People with plasma cell disorders are often at higher risk of infections than others. So, from this discussion, we can say that plasma cell disorder affects the immune system.
Hello! The most practical solution would be to build pedestrian-friendly walkways.
First, you can eliminate C (increasing taxes) because it would mean less people would be able to afford medical treatment or visiting a doctor.
Now, we can eliminate choice A. Purchasing a bicycle for each household would not be practical because it would be costly and increase taxes. Plus, the money could be going to more beneficial uses.
At first, D sounds reasonable, however, not only would it would increase taxes, it wouldn't be practical because many senior citizens have joint problems and the intense exercise equipment found at gyms would not best suit them.
Hope this helps! :)
