Is a procedure where a surgeon removes a piece of a tumor,
or the whole tumor, from the body
and sends it to a lab.
A. A bypass
B. Therapy
C. A biopsy

A biopsy is a procedure to remove a piece of tissue or a sample of cells from your body so that it can be tested in a laboratory. You may undergo a biopsy if you're experiencing certain signs and symptoms or if your health care provider has identified an area of concern.

when comparing the cases, what similarities are there in the cases that suggest one person committed these murders?

exercising at a moderate intensity, and slowly increasing the duration.