A German building has glass tanks on its side that contain algae grown for biofuel. Using biofuel instead of fossil fuel can reduce human impact on natural systems. The algae photosynthesize and grow. People then harvest the algae to produce fuel. The diagram shows this process. Information
A diagram. Short description, A diagram.,Long description,
The diagram shows a building with glass tanks attached to one sunny side. There is a close-up of a tank labeled Tank for growing algae. Pipes extend from the top and bottom of the tank. Water, nutrients, and carbon dioxide enter the tank through the top pipe. Some of the warmed water and algae are drained through the bottom pipe for use. The water in the tank is slightly green and has bubbles.

Question
Engineers want to use these algae tanks on a building in Australia. Unfortunately, the algae cannot survive in Australia's heat.

How can the engineers change the German design to work , in a new location?

Answer options with 4 options
A.
Chill the water before pumping it into the tanks filled with algae.

B.
Install the tanks filled with algae on the shaded side of the building.

C.
Remove all the algae from the tanks except on days that are cool or cloudy.

D.
Use a type of algae in the tanks that is native to the area where the building will be.