Question from the C++ test

Consider the following code:

class Test
{
    private:
        char *str;
    public:
        Test(char *s1)
        {
            ….
        }
        ~Test()
        {
            delete[] str;
        }
}

void main()
{
    Test s(“test string”);
}

What is the correct definition of constructor Test, in order to ensure that code runs successfully?

Test(char *s1)
{
    strcpy(str, s1);
}

Test(char *s1)
{
    str = new char[strlen(s1) + 1];
    strcpy(str, s1);
}