The answer is <span>A. Several of the speakers suggested that much remained to be done.
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Answer:
Vaccines are something really beneficial in the long term, since kids can avoid developing diseases and even some serious conditions that could lead to death. Vaccines can also be of vital importance when dealing with the prevention of blindness and paralysis. Under certain circumstances, it could also be stated that vaccines have done much more for health than even surgery or antibiotics. We can also say that the vaccines are assessed in a very careful way by a group of scientists and professionals that know what is exactly necessary to prevent diseases.
Explanation:
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I think your answer is b because it fits in more
