<span>Muscle cramps are often associated with a:
-a lack of vitamin
</span>
<span>The excitement of the nerves may occur, for example after an injury to a nerve or a muscle or in the case of dehydration or in the case of calcium deficiency, magnesium, potassium ...
Deficiencies in certain vitamins, such as vitamin B1, vitamin B5 and B6 are also causes of onset of <span>muscle cramps.</span></span>
<span>Stephen Hawking uses a speech generating device that he is able to work with a sensor in his mouth. The sensor is able to take his muscle movements and translate them into words. Intel has created something called SwiftKey which has enhanced this sensor to predict whole words and generate them with more clarity and more accurately.</span>
Answer:
the last one is the right answer I believe
