Please answer the following question: I ducked, Cerberus pounced, and Mr. Waciejowski screamed like a dying ferret--a soothing and pleasant sound under most other circumstances, but now only distracting. I felt the rush of air against my face as the crowbar skimmed my head. The man wielding it was in a black three-piece suit and built like a Texas linebacker. His mass seemed to bend space-time in the parking lot as he barreled down on me. All I could see was nearly seven feet of Armani silk. I stood upright and brought my knee into his groin and gave him a swift elbow in the small of his back and a fist to the base of his skull. Now, I wasn't the biggest guy in the world, but I certainly wasn't the smallest either. And I was also acutely aware of how much damage I could do to another human being. But this hulking mass in Italian finery didn't even seem phased. The blows I sent this guy should have dropped him like a bag of wet cement, but he just turned and hamstringed me with that damn crowbar. I fell so hard that one of my teeth chipped. The box flew out of my grip and landed just a few feet away. Out of the corner of my eye I could see Pete on the ground, fumbling with his cell phone while Cerberus mauled another suit trying to sneak up behind me. If the fall hadn't knocked the wind out of me, seeing Cerberus tear into this guy certainly would have. The dog was all fangs and fur, making sounds like construction machinery. Thick and heavy. The guy was screaming all kinds of nonsense as he kept his shredded arms in front of his face and neck. Blood and fabric flew about as the animal tossed its head in violent arcs. Why does the narrator think he is good at fighting? Pick the correct answer from the following options: A. not enough information B. He had many fights before C. Mr. Waciejowski told him so D. He says he is aware of how much damage he could do to another human being.
A:
D