Question

cancer - causing agents are called __________.a. carcinoidsb. tumorsc. sarcomasd. carcinogens

Explanation:

• Carcinoids are a type of neuroendocrine tumor, not cancer - causing agents.
• Tumors are abnormal growths of cells, not the agents that cause cancer.
• Sarcomas are a type of cancer (connective tissue cancer), not cancer - causing agents.
• Carcinogens are substances or agents that can cause cancer.

Answer:

D. carcinogens