问题：
[单选题]Which is the main characteristic of a good conclusion?
AIt is long enough.
BIt should bring your essay full circle.
CIt should contain a quotation.
DIt has three components.
[单选题]Which is the main characteristic of a good conclusion?
AIt is long enough.
BIt should bring your essay full circle.
CIt should contain a quotation.
DIt has three components.
