There was a certain moment of awkwardness , since she 'd never spoken to a Child as an adult- she was n't sure if she was supposed to if it was n't yours , really- then she said , " So you 're number one , huh ? " The girl nodded a little too quickly . She was shaking from fear or excitement or both .

Options are:
(1). They feel that they are number one .;
(2). None of the above choices .;
(3). They are unfamiliar with children .;
(4). They are afraid to talk to the child .;
Q: Why does the author feel awkward ?
(3).