I’m sorry I don’t understand this question
Hard to judge without the context of the other sentences of the story but if I had to guess, it sounds "inviting and familiar" to me.
The answer C correctly uses possessive form and is the right answer. It's not A because there is only one George so the apostrophe is in the wrong place. In B, there's not even an apostrophe and it's not clear as to whether there is only one cousin or two or more cousins. In answer D, here should not be an apostrophe for develops.
