From the statements given below choose the correct statement(s): I. The middle ear…

From the statements given below choose the correct statement(s):

I. The middle ear contains three tiny bones—malleus, incus, and stapes—collectively called ear ossicles.
II. In an adult human, the sacrum is formed by the fusion of five vertebrae.
III. The number of cervical vertebrae is the same in almost all mammals.
IV. The sternum is a part of the appendicular skeleton.
V. Floating ribs are the 11th and 12th pairs, which are not connected ventrally to the sternum.

Choose the correct answer from the options given below: