The correct answer is option 2: 8.

The human cranium, also known as the skull, is made up of several different bones. These bones come together to protect the brain and provide support for the face and sensory organs. In total, there are 22 bones in the human skull, but not all of them are part of the cranium.

The cranium specifically refers to the bones that enclose and protect the brain. There are 8 bones that make up the cranium: the frontal bone, parietal bones (paired), temporal bones (paired), occipital bone, sphenoid bone, and ethmoid bone.

It is important to note that the cranium also includes the mandible (lower jaw), but this bone is separate from the other 8 bones mentioned.

So, the correct number of bones in the human cranium is 8, and it is essential for the protection and support of the brain.