Please Read Passage and Answer the Questions That Follow

Please read passage and answer the questions that follow.
A person may acquire a disability any time from birth through old age. For example, children can develop hearing problems from ear infections. Head injuries can impair cognitive function. Spinal cord injuries can affect movements. And loud noise (music, machines) is linked to hearing loss. The cause or the age of onset does not matter. The person does not choose to have a disability.
-Cognitive function may be impaired by an injury to the ________.

A) spinal cord
B) muscles
C) head
D) ear