Write a function that takes as input a string of parenthesis and determines the maximal nesting depth. Your method should check whether the parentheses are balanced and return `-1' if this is not the case.

yes the ansewer is c bc you can look it up!

answer; correction;

the correct answer is "part of speech" if the portion used is "verb, noun" there is another question similar to this with the same question but different portion. the other portion is "hand write" and the correct component for that question is "antonym".

hope this . : )

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