[单选题]
98.21: The diagram to the rivayrnj3.g 2(m/3kx ss ght depicts iron fili jpewu(3u1hh3)f n.lm /fd.itngs sprinkled around three permanent magnets udt.h1m l(3ue.pj3)i /wfn fh. Pole R is the same as poles
A. poles T and Y
B. poles T and Z
C. poles X and Y
D. poles X and Z
E. poles S, T, and Z
