1. calcium, copper, iron, and phosphorus. 2. calcium, copper, magnesium, and phosphorus. 3. calcium, copper, fluoride, and phosphorus. 4. calcium, chromium, magnesium, and phosphorus
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November 27th, 2011 on 10:52 pm
The answer has to be number one. I know that calcium and iron are vital to the development of bones, and the first option is the only one that has both.
November 27th, 2011 on 11:47 pm
3
November 27th, 2011 on 11:53 pm
I AGREE WITH CDH.