What type of tissue is typically examined during a biopsy?

The correct answer is living tissue because a biopsy is a medical procedure that involves taking a small sample of tissue from the body for examination. The primary purpose of a biopsy is to diagnose diseases, most commonly cancer, by analyzing the cellular structure of the tissue sample. Living tissue is necessary for this analysis because it retains the cellular characteristics and biological features that pathologists need to evaluate.

Examining muscle tissue exclusively, adipose tissue exclusively, or bone tissue only would limit the scope of what can be studied through a biopsy. While biopsies can be performed on muscle, fat, or bone tissues if necessary, the term "living tissue" encompasses all types of tissues that could potentially be sampled in a biopsy, making it the most accurate and comprehensive choice.