Read the body paragraph from an informative essay on alligators. Facilities used to hatch and develop young alligators must meet standards set up by the Department of Wildlife and Fisheries. They must be heated and able to contain, filter, and drain water. These facilities can raise alligators until they reach about three to five feet in length. At that point, the animals must be released into the wild. Alligators who have been raised in artificial conditions have a strong chance of survival.

Which statement is the most effective topic sentence to add to this paragraph?

Reptiles, like alligators, lay soft-shelled eggs from which their young hatch.
In 1986, Louisiana began a program to raise alligators in artificial conditions.
The buildings in a facility are usually partitioned to limit the number of alligators.
Alligators are tagged when they are released to monitor their progress in the wild.