Answer: <em>The root vegetables include beets, carrots, radishes, sweet potatoes, and turnips. Stem vegetables include asparagus and kohlrabi. Among the edible tubers, or underground stems, are potatoes. The leaf and leafstalk vegetables include brussels sprouts, cabbage, celery, lettuce, rhubarb, and spinach.</em>
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<em> </em><u><em>Have a good day!</em></u>
it is used for positive and negative.
answer c
Explanation:
present because the professor is describing, which makes it present