The correct answer is A) Idukki.
Silent Valley National Park is a national park in the Western Ghats of Kerala, India. It is the largest national park in Kerala and the only tropical rainforest in the Western Ghats that is home to a large population of elephants. The park is also home to a variety of other animals, including tigers, leopards, deer, and monkeys.
The park was established in 1980 to protect the Silent Valley forest, which is one of the last remaining undisturbed tropical rainforests in India.
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