A signer offers two choices for dinner by shifting to the right, signing PIZZA, then shifting to the left and signing HAMBURGER. Which of the following is the signer?%0D%0A(3 points)%0D%0AResponses%0D%0A%0D%0Aleft-handed%0D%0Aleft-handed%0D%0A%0D%0Aright-handed%0D%0Aright-handed%0D%0A%0D%0Aambidextrous (uses both hands interchangeably)%0D%0Aambidextrous (uses both hands interchangeably)%0D%0A%0D%0Aunknown based on the information given
