A piece of evidence as seen in this passage is:
<h3>What is evidence?</h3>
Evidence is referred to something/statement which actually proves a point or fact. Evidence helps one to understand the subject matter as a result of what has proven it valid.
From the question, we can clearly see that an author was quoted in options A and D. These options actually present an evidence.
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1. Cope, treat, control, handle, treat
2. trouble, worry, dilemma
3. Relax, unwind, rest, unlax
4. Healthy, healthful
5. Adequate, abundant, decent, sufficing
6. Daily, day-to-day, often, periodically, regularly, regular, routinely
7. belittle, criticize, slam, slander,
8. abounding, bounteous, bountiful, countless, innumerable, plentiful
9. Cramped, inflexible, solid, rigid, stiff, tense, tightened
10. Depressed, morose, pessimistic, unhappy, blue, destroyed, dispirited, down, dragged low, bad, cast-down, glum, grim, let-down, low-spirited, woebegone
11. Afraid, anxious, panicky, startled, petrified, shaken, terrified, aghast, panic-stricken, terror-stricken
12. Fatigue, weariness, debilitation, enervation, expenditure, feebleness, lassitude, prostration