PET/CT的突出优势是（ ）The outstanding advantage of PET/CT is（ ）

A、PET图像和CT图像的融合图像Fused image of CT image and PET image;
B、图像定位更准确More accurate location of lesion;
C、发现早期癌变Detecting tumors at early stage;
D、功能图像Functional imaging