The scientific method is a systematic process that involves:
Making an observation.
Stating a question.
Formulating a hypothesis.
Conducting an experiment.
Analyzing the data and drawing conclusions.
chorionic villus sampling is removing a peice of the placenta.
amniocentesis is removing amniotic fluid.
Ultrasound is listening for a heartbeat.
and so on
I would say either A or C. They are the most likely for a cool down stretch.
Answer:
B. Effective handwashing protocol
Explanation:
"The best was to prevent the spread of Shigella is through basic personal hygiene and frequent handwashing. "
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