I think the best answer would be C) from an independent consumer product testing organization. Hope this helps! ^_^
A is the correct answer because an imperative voice means a request or command, including the giving of prohibition or permission. <span />
I would say A because your organizing ideas.
The noun clause is <span>how the Aztecs made their astronomical calculations.
</span>Just invert the whole sentence - The subject of my next paper is <span>how the Aztecs made their astronomical calculations.
</span>The whole clause is used as the direct object.
The thought would be he is going threw stress and the feeling would be another leve.