He wants to tell the audience that he did not achieve all of his goals. He wants to let the audience know that mastering the basics is key to achieving goals. He wants to explain how to be a good football coach to people who are interested in football.
The answer is D. Interjections express strong emotional excitement.
Brutus' tragic flaw of idealism contributes to his downfall because he was gullible enough to be convinced by Cassius and Antony that they were going to murder Julius Caesar for Rome's development and goodwill. He was blinded by that idealism and believed that these were their true intentions for inviting him in the murder, thus, making him involved greatly and made him feel guilty - leading him to suicide.
