What is the main purpose of this passage? How Smartphones Have Changed the Way We Live

Modern smartphones meet the computing needs of most people. One of their biggest advantages is portability. They have replaced
cameras, maps, notebooks, calculators, diaries, and calendars. People use smartphones in ways that we couldn't have imagined
before. Let's consider a few situations that show how smartphones have changed the way we live.
Many criticize smartphones because people seem to care more about being on their phones than socializing with real people.
However, smartphones allow us to stay in closer contact with others who live far away. They also give us access to a larger number of
people to contact in case of an emergency, Smartphones also contain apps for maps and global positioning systems. You can use
these apps to find people and places or send your location to friends and family.
Smartphones are powerful, portable computer devices. They have replaced many items that performed single tasks, making our lives
easier.

ОА to inform readers about the abilities of smartphones

OB. to caution people about the influence of smartphones

Oc to entertain readers by listing the failures of smartphones

D. to instruct readers on how to use their smartphones