Answer
B,C,D,E,F
“Contains milk and soy” is the only warning that cannot be used because the product does not intentionally contain milk or soy as ingredients.
The other statements are all acceptable because the FDA has nothing to say about precautionary allergen label (PAL) warnings, including when they should be used, how they should be worded, and where they should appear. Their inclusion and wording are entirely voluntary; some manufacturers include them, many major manufacturers don’t, and others may warn for one allergen and not another.
Here is a graphic that sums up the issue: