This link will help you
http://www.stanfordchildrens.org/en/topic/default?id=blood-circulation-in-the-fetus-and-newborn-90-P...
Answer:
Partially blocked means that the airway is NOT completely blocked by whatever, whilst blocked choking means that the airway is COMPLETELY blocked.
answer is : from cancer.
because that is the answer that could possibly be related to health . and that's the most rational one too.
