Consider the rooted tree with root a illustrated below.     How many leaves does it have at level 2?    How many internal vertices does it have at level 3?    How many ancestors does h have?    How many siblings does e have?    How many descendants does h have?

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A: hey! Thanks for your question. As per the policy, first three parts are answered.

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A: Here is the c program of the above problem. See below step for code and output.