A person with clinical depression will experience at least four signs of the disorder for at least two weeks.
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B. Kristy and her coworkers began carpooling to work instead of taking individual cars
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<span>The human body is composed of elements of nature and of different density: fat, bone, protein, water. In a healthy person, these are kept in constant proportions whatever <span>the environment.</span></span>
<span>The correct answer is A. In a vertical relationship, one person is above another in a power hierarchy, hence the description ‘vertical’.</span>