Final answer:
A donor with blood type B+ can safely donate blood to individuals with blood types B+ and AB+.
Step-by-step explanation:
A donor with blood type B+ can safely donate blood to individuals with blood types B+ and AB+. This is because individuals with type B+ blood have the B antigen on their red blood cells and do not produce anti-B antibodies in their plasma. Therefore, they can donate to individuals who have the B antigen on their red blood cells (B+ and AB+).