Answer & Explanation:
Zoo animals are usually not the type that can be found everywhere, so working with these animals can help the veterinarians to get to know better how to treat and help the not domesticated animals. Also, this knowledge could highly contribute to the general understanding that veterinarians have of certain types of animals found in zoos.
You can that aunt marry is someone who is very nervous and cautious by how the author used the word shrieked and how you can infer she was scared by the tone of the story
Science fiction is based imagined future scientific or technological advances and major social or environmental changes, frequently portraying space or time travel and life on other planets. realistic fiction is a genre consisting of stories that could have actually occurred to people or animals in a believable setting.
A sounds like the most likely answer, since it shows that she cares for him and wants to do something special for him.