Multiple choice

Blood cancer occurs due to the uncontrolled increase in the number of

  1. RBC

  2. WBC

  3. platelets

  4. Hemoglobin

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Blood cancer (leukemia) involves uncontrolled proliferation of white blood cells (WBCs) in bone marrow. This crowds out healthy blood cells. RBCs carry oxygen, platelets help clotting, and hemoglobin is the oxygen-carrying protein in RBCs - none are the primary cancer source.