Final answer:
The volume of the second rectangular prism is 200 cubic units.
Step-by-step explanation:
The volume of the first rectangular prism is given as 100 cubic units. To find the volume of the second prism, we need to double the volume of the first prism. Doubling the volume means multiplying it by 2. So, the volume of the second prism is 100 cubic units multiplied by 2, which is equal to 200 cubic units. Therefore, statement B is true.