Oncologists diagnose and treat which, the second greatest cause of mortality in the United States?

Oncologists diagnose and treat which, the second greatest cause of mortality in the United States?

• A. Infections
• B. Trauma
• C. Degenerative diseases
• D. Tumors

Answer: (D)

The key idea is that cancer is the second leading cause of death in the United States, and oncologists specialize in cancers, which are malignant tumors. Oncologists diagnose and treat cancers, involving malignant neoplasms that can spread and require treatments like surgery, chemotherapy, and radiation. While infections, trauma, and degenerative diseases do contribute to mortality, they are not the focus of oncology and do not represent the second leading cause of death. Therefore, tumors is the best answer because it directly aligns with what oncologists diagnose and treat—malignant tumors, i.e., cancer.

The key idea is that cancer is the second leading cause of death in the United States, and oncologists specialize in cancers, which are malignant tumors. Oncologists diagnose and treat cancers, involving malignant neoplasms that can spread and require treatments like surgery, chemotherapy, and radiation. While infections, trauma, and degenerative diseases do contribute to mortality, they are not the focus of oncology and do not represent the second leading cause of death. Therefore, tumors is the best answer because it directly aligns with what oncologists diagnose and treat—malignant tumors, i.e., cancer.