Reread paragraph 3 of "Digital Cameras." Which detail from the paragraph BEST explains why some pixels will be black and others will be white?..

2. the central idea of the article is developed (a) emphasizing the relationship between declining sales for apple and samsung after peak smartphone (b) elaborating on what has caused smartphone sales to decline as the industry hit peak smartphone (c) illustrating how the trade war with china has affected various items in addition to smartphones (d) indicating that large smartphone companies have not done enough to reach underserved markets 3. the author claims that slow development of new features is partially responsible for the decline in smartphone sales. which piece of evidence is not relevant to the claim? (a) samsung, long the leading seller of smartphones, has been hit even harder as its phone shipments fell 8 percent during the 12 months that ended in september. (b) tech innovations in phones grew in leaps and bounds earlier in the 2010s. every year, there were dramatic improvements in screen size, screen resolution, battery life, cameras and processor speed. (c) innovation began to slow around 2014, once apple boosted the screen size with the iphone 6 and 6 plus models. while phones kept improving, the improvements were relatively minor. (d) "they're getting more and more expensive while offering fewer and fewer new, innovative features that i'll actually use," said zachary pardes, a tech-savvy 31- year-old in fairfield, connecticut. 4. ramon llamas states that smartphone sales will begin rising again in 2021 or 2022 when people's current phones start reaching the end of their useful life. which selection shows that llamas acknowledges a limitation to his prediction? (a) "i'll upgrade when the battery stops working. when i'm forced to buy a new phone, i'll buy a new phone." (b) "people will still replace their phones. it's going to happen eventually," he said. (c) however, it will be years before 5g service is widely available. for that reason, the new 5g smartphones coming out this year are not likely to be that much in demand. (d) "by no means is this the end of the smartphone market — but this is an indication that the smartphone market can be a victim of its own success."