Answer:
C is the answer to the question
<em>it would be b and c</em>
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<em>it's the whole ''ecosystem''</em>
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While you didn't provide us with a list of foods that Anna is eating or has eaten in the past, her diet would be appropriate for her if she was abstaining from food that has a high glycemic impact (bread, pasta, candy, chocolate) on her body, or just food which contains glucose in general. Both of these are not allowed for diabetics as they might trigger unwanted effects.
Mohs scale is used to identify hardness if he minerals. There is no scale to identify rocks Bc rocks are rocks