Answer:
B. It has the same radius as a single can but twice the height.
Step-by-step explanation:
A. It has the same radius and height as a single can.
No
B. It has the same radius as a single can but twice the height.
Yes
C. It has the same height as a single can but a radius twice as large.
No
D. It has a radius twice as large as a single can and twice the height.
No
Since both cylinders has the same radius, when they are both stacked together (vertically), the radius coincides, thereby making the stacked cylinders maintain same radius
This means, radius of cylinder A = radius of cylinder B = radius of stacked cylinders
But, the height doubles of the two stacked cylinders double.
That is, height of cylinder A + height of cylinder B
