Hello there!
The answer to your question is D. chromium.
Hope this helps you!
The Sickle Cell Disease Association of America
I would say this way of defining family is by blood relationship ie sharing the same blood as the parents as opposed to say someone brought up by foster parents ie adopted and thus having a family by virtue of upbringing ie by who the child was brought up by.
c) eat smaller portions
I think so, it makes the most sense to me