Passage Summary: A company gives away free samples of their energy pill, so the author assumes the pill must work; otherwise, the company would just be losing money.

Conclusion: The supplement Activite is likely an effective product.

Reasoning: The company offers a free month's supply to new customers, which would seemingly be against their financial interest if the product didn't work.

Analysis: The argument assumes the only reason to give away free samples is because the product is so good that people will definitely buy more. To weaken this, we need an alternative business reason for the free offer. Perhaps the cost of production is so low that the company doesn't mind the loss, or maybe they rely on a 'subscription trap' where people forget to cancel after the free month. Look for an answer that provides a motive for the free trial that doesn't involve the supplement actually being effective.