Directions: read the passage that follows. Then, choose the BEST answer for questions 4, 5, and 6. Good luck!
"The line rose slowly and steadily and then the surface of the ocean bulged ahead of the boat and the fish came out. He came out unendingly and water poured from his sides. He was bright in the sun and his head and back were dark purple and in the sun the stripes on his sides showed wide and a light lavender. His sword was as long as a baseball bat and tapered like a rapier and he rose his full length from the water and then re-entered it, smoothly, like a diver and the old man saw the great scythe-blade of his tail go under and the line commenced to race out.
'He is two feet longer than the skiff,' the old man said. The line was going out fast but steadily and the fish was not panicked. The old man was trying with both hands to keep the line just inside of breaking strength. He knew that if he could not slow the fish with a steady pressure the fish could take out all the line and break it.
He is a great fish and I must convince him, he thought. I must never let him learn his strength nor what he could do if he made his run. If I were him I would put in everything now and go until something broke. But, thank God, they are not as intelligent as we who kill them; although they are more noble and more able."
What is the predominant mood conveyed in the passage?