单项选择题

A.sequence_000.exr,sequence_001.exr,sequence_002.exr ...
B.sequence.000.exr,sequence.001.exr,sequence.002.exr ...
C.sequence-01.exr,sequence-02.exr,sequence-03.exr ...
D.sequence.exr.1,sequence.exr.2,sequence.exr.3...