A Patient Who Has Metastatic Colorectal Cancer Tells the Nurse

A patient who has metastatic colorectal cancer tells the nurse that a cousin who had colorectal cancer received bevacizumab (Avastin) and wonders how the drug works. The nurse will explain that bevacizumab works by targeting which of the following?

A) HER2 receptors.
B) epidermal growth factor receptor-tyrosine kinase.
C) the BRCA1 suppressor gene.
D) vascular endothelial growth factor (VEGF) proteins.