请选择CBA6f0n5h9[)n My grandpa is old, _______ he looks young.0t/a-k3~*~/W,n6N;Y0@
A. and0t/a-k3~*~/W,n6N;Y0@
B. but0t/a-k3~*~/W,n6N;Y0@
C. or0t/a-k3~*~/W,n6N;Y0@