The answer is D. You know that thing that goes Do Re Mi Fa So La Te Do? There’s a good chance you sang it in your head. It’s a scale :)
Answer:
Til this day trying to survive has been a hard task due to the revise of our past history.In fact the vitality risk is very high.
Me putting it in question form;
do we need to revise our descions based upon our actions ? what if it is leading to the conclusion of survival ? even Vitality?