It would be multiple sclerosis since it results from the protective covering of nerves.
Aging is linked to changes that can make you prone to deficiencies in calcium, vitamin D, vitamin B12, iron, magnesium and several other important nutrients. It may also reduce your ability to recognize sensations like hunger and thirst. Luckily, you can take actions to prevent these deficiencies.
So answer is true
Hello there!
You're answer should be - A.
Hope this helps you!
~Galexie