Which of the following sentences is an example of an affirmative statement in ASL?

(2 points)
Responses

ALLY SHE NOT MY SISTER (nod head)
ALLY SHE NOT MY SISTER (nod head)

ALLY SHE NOT MY SISTER (shake head)
ALLY SHE NOT MY SISTER (shake head)

ALLY SHE MY SISTER (nod head)
ALLY SHE MY SISTER (nod head)

ALLY SHE MY SISTER (shake head)