Write the next sentence in this paragraph:

How to build your own fishing pond
Set up a space.
Designate a certain part of your yard for it. This area should be large enough so that the fish can roam, but small enough so that it stays on your land (unless the neighbors are okay with it).

Pick your answer from:
(a). Place a fish fountain in the area. Ensure that the fountain dries out before going to your area..
(b). Put a power pole in the space in which the pond was set up. Place the hook at the right place, above the water line..
(c). Set up a space where you can easily move the fish, but not so large that it forms an obstacle to your fish as they swim around. Set up a gravel bed if the area you choose isn't safe..
(d). See if the dirt is suitable by making a small hole and pouring some water in it. The longer it takes for the water to be sucked up, the better..
(d).