Help please Half of the subjects (the study volunteers) were given a placebo. The other half were given the vaccine. This created two groups: the placebo group and the vaccine group. The study used a random process to choose which subjects were assigned to each group. Why would subjects be randomly assigned to the groups?

i   believe   the   answer   is   d

you can earn the crowns by answering others questions an being selected brainliest if your answer is the best.

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c) vampires in history and modern life.

this story explains the proverb “small acts of kindness will be rewarded greatly” and how anyone regardless of their size and appearance, can make a major impact in certain situations. this tale can teach your child to appreciate others and create a tendency in their minds.