It’s wrong answer because its included only animal while a community have animals as well as plants means all organisms. Community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants with animals, bacteria, and fungi makes up a biological community. It differs from an ecosystem, which consists of the biological community together with its physical environment.
Animals living together in the same environment makes a community.
It’s wrong answer because its included only animal while a community have animals as well as plants means all organisms. Community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants with animals, bacteria, and fungi makes up a biological community. It differs from an ecosystem, which consists of the biological community together with its physical environment.
http://www.britannica.com/science/community-biology