Answer is D, to inform audience about steps when preparing for road trip (apex)
If you speaking well, you can communicate better and have more friends, have other's trust.
<em>How it works. </em><em>A camera obscura is a dark room with a small hole in one wall in its simplest form.</em><em> When it's bright outside, light enters through the hole and projects an upside-down image of the outside world onto the wall opposite the hole.</em>
