The sequence of ear ossicles from outside (tympanum) to inside is 

• The middle ear is made up of three bones called ossicles: malleus (hammer), incus (anvil) and stapes (stir-up).
• These bones are linked together in a chain-like fashion.
• The malleus is connected to the tympanic membrane, whereas the stapes is connected to the oval window of the cochlea.
• As a result, the order of the ear ossicles from outside to inside is malleus, incus, and stapes.
• As a result, the right answer is 'malleus, incus, and stapes.'

Hence, option C is the correct answer.