请选择CBA8v2Y0D7}5g4{9V8Z —Where are _____?9C9R3a1i3\
—They are on the chair.9C9R3a1i3\
A.Tony's books9C9R3a1i3\
B.Tony's book9C9R3a1i3\
C.Tony books9C9R3a1i3\