In the following function, where should the call to "free (root);" go?void _destroy (NODE* root){ if (root) { _destroy (root->left); free (root->dataPtr); _destroy (root->right); } return;}
A. Right before _destroy(root->right).
B. Right after _destroy(root->left).
C. Right after _destroy(root->right).
D. Right before the return statement.
Answer: C
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