Why does the Captain describe Macbeth as brave?

Does anyone know the answers to these two? i don’t want to have to guess, you!

Jenna stood in front of the closed door. she knew she hadevery right to be here. your exam scores are just as high ascora's, she said to herself. there's no reason you shouldhave been left off the math team while cora was namedcaptain. she had never been one to rock the boat, but shecouldn't just let this lie.she pushed the door open and saw ms. jenson, the mathteam advisor, sitting at her desk. "ms. jenson? can i talk toyou for a minute? " her voice wavered, but she tried to lookconfident."sure," said ms. jenson, "but i hope this isn't about namingcora captain of the math team. i'm afraid my decision isfinal."jenna took a deep breath and prepared to plead her case.which statement best describes the external conflict in this passage?

The question below refers to the selection “ozymandias” by percy bysshe shelley. the traveler seems to believe that — a. monuments are eternal b. the passage of time is necessary and inevitable c. we must preserve relics of past civilizations d. even the greatest works are destroyed by time