Answer: Third option is correct.
Step-by-step explanation:
Since we have given that
Height of trapezium = 3 units
and Length of parallel sides are 5 units ad 4+4=8 units.
So, Area of trapezium is given by
So, we have given that "Volume of prism = 234 cubic units":
Hence, height of prism should be 6 units.
Thus, Third option is correct.