The correct option is C 150 cubic m
The amount of water Professor Burger can fill in the tank is equal to its volume.
The tank is in the shape of a cuboid.
Volume of a cuboid
= Length × Width × Height
Given:
Length = 5 m
Width = 5 m
Height = 6 m
Volume = 5 × 5 × 6 = 150 cubic m
Hence, he can fill 150 cubic m of water.