Answer:
A. Cancers are classified according to the type of tissue they affect.
Step-by-step explanation:
This is the most accurate statement that describes how cancers are classified. Cancers are classified according to the type of tissue or cell they originate from. For example, breast cancer originates in breast tissue, while lung cancer originates in lung tissue. This classification is important because different types of cancer may require different treatments and have different prognoses.
Cancers can also be further classified based on factors such as the stage of the cancer, how far it has spread, and other characteristics of the tumor. However, the primary classification is based on the tissue or cell type of the cancer