A man's lack of instinct.
Also by studies.
You can become a nurse for any reason. You could be an assistant to a very famous doctor and get great tips. You could help people with the experience fro of your job. You could help your family without being in a hospital. You could be a great example for children, You could inspire them to be like you when you get older. You would get paid fairly. You could even get enough experience to become a doctor! Nurses are important parts of people's lives which is why you could become one. Without nurses who would hand the doctors the tools they need? correct them? tell them what's wrong with the patient? That is the reason you could want to be a nurse.
B, Redundancy<span> is the grammatical error in the title. Using the words 'relationship between' and 'correlation' is redundant/unnecessarily repetitive. (Correlation is a mutual relationship or connection between two or more things).</span>
The best expression that completes the sentence below is A) so that.
I'm going shopping for food this evening so that I don't have to go this weekend.