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Pick the correct statement about string objects in C++.

(a) String objects must be terminated by a null character(‘\0’)

(b) String objects have a static size

(c) String objects have a dynamic size

(d) String objects use extra memory than required.

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I'd like to ask this question from String in chapter Source Files, Classes and Operator Overloading in C++ of C++

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Correct answer is (c) String objects have a dynamic size

To explain: String objects are dynamic in nature i.e. their size varies as their value changes so they don’t use any extra memory and it is not necessary to terminate a string object by ‘\0’.

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