Answer:
It could be either B. or D.
Explanation:
Its's not A or C because its something big you'd have to carry around for A.
C: Because it's a power point in which you'd need a computer to carry.
B and D. are both portable and small. They are easy to carry around with. I'm not sure between the 2 of them, sorry.
3.
:)
Action verbs: push ups and sit ups
who is doing the action: the man