If you're using an apple product to do video editing, then iMovie is probably the best way to do that.
If you're on Windows and you're looking for a free video editing website, I'd suggest WeVideo. Although WeVideo does add watermarks to your videos, editing is pretty easy when using it.
Answer:
D. smart phone
explanation;
a. what the heck is a radio going to do?
b. an HD television? is his job watching movies?
d. he already has a form of communication he uses, he needs something that can to both things at the same time
c. a smart phone can do everything he needs to do, likely faster than a landline phone or laptop.
Values = [1.1, 10, 4.55, 30004, 0.2]