Which of the following passages probably comes from an informational report?

a.The Samsung Galaxy Tab delivers a consistent and reliable Android big-screen tablet experience, but unless you're a Samsung loyalist, there are better values to be had.b.AMOLED displays have high contrast ratios, as they are based on an emissive technology rather than the backlight solution used in LCDs. A deeper black emerges because the pixels can be turned off completely.c.Compared with the iPad, Samsung does offer some real advantages– particularly the AMOLED display and the very thin and light design. However, the iPad itself has a pleasing design and its ecosystem and all the tablet apps are a formidable challenge