Answer:
it's either A or B. I'm positive it's a pivot. it's most likely a standing pivot but it still could be b not completely sure. Hope this helps.
Answer:
Some vaccines contain whole bacteria or viruses. In these cases the bacteria or viruses will either be severely weakened (attenuated) so that they cannot cause disease in healthy people, or killed altogether (inactivated). Many vaccines contain only parts of viruses or bacteria, usually proteins or sugars from the surface. These stimulate the immune system but cannot cause disease
Explanation:
