Which of the following statement about vitamin C is FALSE？

A、VitaminCentersthebloodcirculationfromtheintestinethroughdiffusionoractivetransport;
B、Anti-oxidation,scavengeoxygenfreeradicalsinthebody;
C、VitaminCisabsorbedinareducedformandisoxidizedafterenteringthebody;
D、VitaminCismainlyexcretedthroughurine,followedbysweatandfeces