Decompression sickness manifests ITSELF with joint pain and it can be fatal.
'Itself is a word that is usually used as the object of a verb or preposition to refer to to an inanimate thing or an animal which has been mentioned previously as the subject of the sentence.
<span> it's B. repeating key words for emphasis
because it repeats keywords and phrases and you want to identify your most important points.
</span>
I think its B? judging the quotes he has stated.
Answer:
the 4th one trust me ik !!!!!!!
