阅读下面两篇短文，根据短文内容， 从A、B、C三个选项中选出可以填入空白处的最佳选项。

Lizards （蜥蜴））are unusual, but they can make good pets because most of them are small and 1 to care for. They do not make loud noises, and they do not need to go for walks or take baths.

Of course, some lizards make better pets than others. One of the most popular lizards in pet stores is the bearded dragon. Bearded dragons are active during the day and do not 2 people holding them. You can take them everywhere. Geckos are another popular pet lizard. They are a little difficult to care for, 3 . 

Another kind of Lizards is iguanas. It's a bad idea to keep two iguanas together4 each can grow to be almost two meters (nearly six feet). They need a big place to live in. And they're sometimes 5 to people, so be careful when you get close to them.