Rosencrantz and Guildenstern are character's in William Shakespeare's tragedy "Hamlet". They are childhood friends of Hamlet, summoned by King Claudius to distract the prince from his apparent madness and if possible to ascertain the cause of it.
The inference from the paragraph is about the consequences that can occur of we stop buying batteries.
<h3>What is an inference?</h3>
It should be noted that an inference means the conclusion that can be deduced from the information given in the story.
In this case, the role of paragraph 7 is about the consequences that can occur of we stop buying batteries. The author illustrated that the people who make it will stop if people stop buying them.
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I´d say A. Others don´t make much sense in the context.