The main idea of the section "Try This With A Cellphone" is that light is everywhere. Which key detail from the section suppor
the section's main idea?
(A)
But every object makes some light, including people.
(B)
It talks to other phones using radio waves.
(C)
Point the remote at your phone's camera.
(D)
It can be dangerous if you use too much.
Σ
O
hp