Defend. I people cannot set aside their own agenda for the team, and put forth a team effort they do not belong on the team. A team requires all members to co-operate in a manner that is wholly for the team's betterment, and success.
The correct answer is A (his), because a pronoun takes the place of a noun effectively. In this case, the noun being “the man’s”. -♡
Answer:
Greg opened the door and found his father pacing the kitchen with a worried look in his eye. When he saw Greg, his face broke out into a smile. “Where on earth have . . . ,” he started to say. But then he stopped and pulled Greg toward him in a big bear hug. “Forget it, it doesn’t matter anymore. I’m just glad you’re home,” he said.
Greg looked up at the man he had never understood before. “Thanks, Dad,” he said.
“For what?” his father asked.
Greg smiled, and answered, “Everything.”