Among the given options, find the odd one out : 

ulna

The correct answer is Option (1) – ulna

The odd one out among the given options is "ulna."

Explanation:

• Malleus, incus, and stapes are three small bones located in the middle ear of mammals.They are collectively known as the auditory ossicles and play a crucial role in transmitting sound vibrations from the outer ear to the inner ear.
• Ulna, on the other hand, is one of the two long bones in the forearm, along with the radius. It is not part of the auditory system but is instead involved in forearm movement and stability.