Irony in standardized testing.

The following gem is from the California Achievement Test (CAT) for Grade 2. It's found in the Language Mechanics section of the test, which covers, among other things, comma usage.

Read the sentence and look at the punctuation marks below the sentence. Decide which punctuation mark, is needed, fill in the circle that goes with that mark. If no punctuation mark is needed, fill in the circle that goes with the word "None." Mark your answer.

Here's a scan: