Karen had been working overtime to complete a project so that she could go skiing at the end of the month. on the say of her trip, karen got sick with the flu and had to cancel. stress hormones had most likely affected her immune system by
answer choices
a) hardening her arteries
b) causing the hippocampus to shrink
c) suppressing white blood cells called t lymphocytes
d) diverting too much blood to the heart and thereby overloading the system
e) increasing melatonin release into the bloodstream

C) Suppressing white blood cells called T lymphocytes    

Explanation:

The white blood cells are the cells in the blood that protects us from diseases and strengthens our immune system.

T lymphocytes are a type white blood cells that are a small constituent of the immune system. It develops from the cells of the stem into bone marrow. These cells help us fight cancer cells also.

They guard our immune system and prevents us from falling sick. They fight against the invaders in our body and keep us safe from foreign germs and bacteria.

But the stress hormones that arises in the body suppresses the white blood cells.

Thus the answer is :

C) Suppressing white blood cells called T lymphocytes    

Karen would get impacted by suppressing white blood cells called T lymphocytes due to stress.

The white blood cells tend to protect humans from any virus or bacterial attacks thereby keeping the body safe from disease. Here, Lymphocytes help in immuning the body from infections such as cancer.

Therefore, when a person experiences stress they release stress hormones that lead to low T lymphocytes as Karen was doing extra work to go skiing which ultimately suppress the white blood cells of humans and got sick.

Learn more about white blood cells here:

link