Critical Reasoning (CR) | Re: Sales of telephones have increased dramatically over the last year. In

I found this question very strange. Options talk about the past to prove that Mammoth Industries CANNOT increase its sales of telephones by adopting the plan outlined.
How can we assume this? Even if something has not done well last year, can it not do great the next year or future?

It is an OG question, so certainly my understanding is wrong.
I am struggling with such questions. Can anyone please suggest?

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