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Option 2 : 2
Here the correct answer is 2.:-
- Here we are talking about the point of time in the past when people got to know about the coffee tree.
- So, it is an action of the past(a long time ago).
- Therefore, past tense of the verb will be used.
- 'Appears' is the first form(present tense) of the verb.
- Thus, 'appears' will be replaced by 'appeared'.
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