Single$-$choice $(5$ points$)$

Two images that are taken from two different imaging modalities. In the medical context this could be a CT and a PET images. It could also be an image taken with a normal camera an a thermal camera. Which of the proposed registration methods would you use?

A A registration method based on intrinsic features would be best as they look the same in every imaging modality.

B I would use a registration method that uses mutual information as it is independent of the imaging modality.

C A registration method based on extrinsic features would be suitable.