What is the term for deer that are legally hunted?

The term "shot by" accurately describes the method of legal hunting as it relates to deer. In the context of hunting, "shot" refers to the practice of using a firearm or bow to kill the animal. This terminology implies both the legality and the common practices involved in hunting. The use of firearms is typically regulated by law, and hunters must follow specific regulations to ensure that they are acting within legal boundaries when hunting deer.

On the other hand, the other choices—"trapped by," "chased by," and "caught by"—do not specifically reflect the legal and conventional methods associated with hunting. Trapping usually refers to capturing animals using devices like traps, which can involve different legal considerations and is not specifically how deer are hunted in most contexts. Chasing might suggest pursuing the animal but does not imply a direct method of hunting established in many regulations. Caught can imply various means of capturing animals but is not a primary term used in the context of ethical and legal hunting practices. Thus, "shot by" best encapsulates the legitimate action of hunting deer.