B. What blood type can people donate to who have Blood Type B?

People with Blood Type B can receive blood donations from individuals with Blood Type B and Blood Type O. Therefore, donors with these blood types are compatible for recipients with Blood Type B:<br /><br />1. **Blood Type B**: Individuals with Blood Type B can donate to others with Blood Type B.<br />2. **Blood Type O**: Known as the universal donor for red blood cells, individuals with Blood Type O can donate to any blood type, including Blood Type B.<br /><br />It's important to match Rh factors as well (positive or negative) when considering blood transfusions. For example, someone with B+ blood can receive B+ or O+ blood, while someone with B- blood can receive B-, B+, O-, or O+ blood, depending on specific medical guidelines and availability.