You also evaluate your model on the test set, and find the following:
Human-level performance 0.1% Training set error 2.0% Dev set error 2.1% Test set error 7.0% What does this mean? (Check the two best options.)
You have underfit to the dev set.
You should get a bigger test set.
You should try to get a bigger dev set.
You have overfit to the dev set.