Correct option is B
The correct answer is (b) 14 June.
• World Blood Donor Day is observed annually on 14th June to raise awareness about the importance of donating blood and to thank blood donors for their voluntary contribution to saving lives.
• The day commemorates the birth anniversary of Karl Landsteiner, the scientist who discovered the ABO blood group system.
Information Booster:
- The day emphasizes the need for regular blood donations and encourages people to donate blood voluntarily, helping to ensure that blood supplies are sufficient for hospitals and patients in need.
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