Idiom
For each of the following sentences four alternatives are given. You are required to choose the correct meaning of the idiom or phrase given or underlined in the sentence. It is no longer easy to strike gold in Shakespeare's research since much work has already been done on him.

Come across the word "gold"
Uncover or find a valuable line of argument or information
Hit a golden spot
Come across gold

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Idiom
Agro forestry is

Growing of tree with cultivation of crop in the same field
Growing tree after cutting crop
None of these
Growing tree for forest

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