The floor of the cranium includes all the following bones exceptA the temporal bonesB the occipital boneC the ethmoid boneD the sphenoid bone

The best answer according to the option is - C the temporal bone.

Explanation:

Human skull have 22 bones which are divided in two part facial bones and the cranial bones. Cranial bones are divided into different parts, Cranial floor or the base of skull is the inferior area of the skull.

The floor of the cranial is made up of the the ethmoid bone, the sphenoid bone and the occipital bone. The temporal bone is one of the facial bone that also present on the base of the skull.

Thus, the correct answer is option - C the temporal bone.