Answer:
Silicon can be used to make glass. So your 3rd option.
Explanation:
B because A is the experiment so you won't have the data until after, not C because that's when you have your final verdict on the experiment not just looking at results, and not D because a hypothesis is something you form before an experiment. Hope this helped!<span />
<span>No, they are just moving very slowly or vibrating in a closed space so that it makes the item solid. Hope I helped. :)</span>
