Two logistics students, mark and sarah are discussing hazardous material handling. mark says that placards are signs placed on the outside of a vehicle or container to warn that a hazmat is inside. sarah says that placards must be placed away from other markings or labels. which student - mark or sarah - is correct? a: mark is correctb: sarah is correctc: both are correctd: neither is correct

The correct answer is option C: both are correct.

Explanation:

Mark's point of view is right. In hazardous material handling, placards should be placed on the outside of a vehicle or container to comply with regulations that state the importance of warning others that a hazmat is inside. They also help to identify what type of dangerous material is it so that people can take specific precautions and follow certain instructions. In additioin, Sarah is also right because, according to international regulations, placards must be placed at least 3 inches away from any other marking. Thus, nothing can affect their visibility.

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