20 口腔內如發生 infection 很有可能會擴及 (involve) 到下列那三個 space？
(A)triangle space, submandibular space, infraomohyoid space
(B)buccal space, pterygomandibular space, zygomaticotemporal space
(C)carotid space, venous space, submental space
(D)pterygoid space, sublingual space, parotid space