Think about the Article. In what way are cell phones of the early 2000s and Apple's first iPhone different?

A. Cell phones in the early 2000s had a physical keyboard and very small screen, while
the first iPhone had a big touchscreen and many apps

B. Cell phones in the early 2000s had a clock, calendar, and address book, while the first
iPhone had none of those things.

C. Cell phones in the early 2000s weighed 22 pounds (about 10 kilograms), while the first
iPhone weighed 4.4 ounces (125 grams).

D. Cell phones in the early 2000s couldn't take pictures or send texts, while the first iPhone
could do both of those things