A student is writing an essay about planned obsolescence, the design of products with intentionally limited useful lives. Draft excerpt: The paragraph explains that consumers may replace devices not because the devices are unusable, but because repair is difficult or software support ends early. Revision question: The writer is considering adding this sentence after the definition: A phone that works mechanically but can no longer receive security updates shows how a product can become obsolete before it physically fails. Which choice best determines whether the sentence should be added?