Answer:
Option A and C are correct answer.
Both option have impulse of 30 units.
Step-by-step explanation:
Lets have a look to the definition of impulse.
Impulse is the product of force applied to an object with the amount of time applied to it.
Impulse
Force
time
A
units
B
units
C
units
D
units
So we can see that A and C have
units.
Our final answers are option A and C.