Answer to Question 1
ANS: C
Cancer that has spread to regional structures, such as lymph nodes, is stage 3. Cancer confined to the organ of origin is stage 1. Cancer that is locally invasive is stage 2. Cancer that has spread to distant sites, such as a liver cancer spreading to lung or a prostate cancer spreading to bone, is stage 4.
Answer to Question 2
ANS: B
Tumors that arise from or form ductal or glandular structures are named adenocarcinomas. Can-cers arising in epithelial tissue are called carcinomas; mesenchymal tissue (including connective tissue, muscle, and bone) usually have the suffix sarcoma; lymphatic tissue are called lymphomas.