An author claims that "zoos do more good than harm." the author provides the following as support for the claim:

i believe zoos are great because they give animals exactly what they need. i have seen caretakers feed animals and give them medicine when they are sick. i have watched zookeepers cuddle baby monkeys and place blankets over cold piglets. they train animals to do tricks, too, so that the animals have fans who love and cheer for them. i am sure this makes the animals happy.

which choice best describes the support the author provides?

It is ineffective support because it presents opinion rather than fact.

Explanation:

the rhetorical technique most used in this excerpt is parallelism. parallelism is a technique which author used in sentence as substitute of repeated synthetical similarities. it is the effect of rhetorical technique.

explanation:

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).