Jodie is playing MicroTerra, a game where you care for animals in a fantasy world. She began the game with a small herd of sand dragons. Early on, the sand dragon population grew steadily. After a while, the sand dragons filled their territory completely, and their population leveled off. Once Jodie was able to increase their territory, the population climbed once more.
Which graph could show the total population of Jodie's sand dragons over time?