The correct answer is lack of knowledge of disease.
If a child has a disease and because he/she lacks knowledge of the disease then the child may end up passing away.
It is good for a parent to take all the vaccination which are needed for growth.
Diseases like measles a parent should follow all the required vaccination for a better growth of the child.
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I’m pretty sure that the answer would be false. Hope this is helpful to you! ^_^
The chef must first clean his hands before touching the bread
By wearing safety equipment
(but all of them could work)