A drought caused by failure to prevent bracken ferns from overrunning the fields.
A drought caused by actions of human beings.
A drought caused by climate changes.
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The Correct Option isD
Solution and Explanation
The prefix anthropo- refers to humans, and the passage specifies that deforestation, soil nutrient depletion, and land mismanagement by humans contributed to the drought. Hence, it is a drought caused by human actions, making (4) correct.