HLP Robby never showed up to anywhere on time. He arrived to every class in the middle of the lecture. He even showed up for practice after his friends were already tired and sweaty playing volleyball. Anyone who knew Robby was prepared to wait for his arrival.
But, it was all about to change. Robby was actually in charge of the homecoming float. He had promised to be at the stadium early to help install the float. In fact, Robby had told his friends that this was his chance to change people's impression of himself.
When the day of the parade arrived, Robby's friends were thrilled. The float was ready. It was going to win the competition. Robby only needed to hook up the float to the truck. He was the best mechanic in eighth grade. The work would only take half an hour, and Robby was skilled and fast.
Today, I am going to show them, Robby thought and walked with the tool box toward the stadium. He took light, happy steps. When he reached the stadium, he was shocked to see his float already mingling with the other floats. Then, he remembered that he had forgotten to set his alarm to go off at six.
"Boy, am I early!" he said to himself, ashamed.

What is ironic about Robby's response from the story?

"Boy, am I early!"
A. Robby believes he has changed his impression.
B. Robby thinks his friends messed up the float.
C. Robby is feeling embarrassed about being late.
D. Robby is unaware of his being late for the float.