Answer: A. inactivation of tumor necrosis factor
Step-by-step explanation:
The options include:
a. inactivation of tumor necrosis factor
b. inhibition of osteoclast activity
c. decreasing the reuptake of serotonin
d. interference with the production of lymphocytes
Etanercept is simply referred to as a form of drug that's called the biological therapy. It is refered to as an anti-TNF drugs as it helps in the blocking of TNF and also in the reduction of inflammation.
From the question, the nurse should identify that etanercept treats rheumatoid arthritis by the inactivation of the tumor necrosis factor.