From Aikido Masters, p279-280.
But the moment I touched him I was startled. I felt as if I had taken hold of an iron bar. Of course, I knew very well from my experience in sumo that it would be useless to struggle against him. I immediatly knew I had been defeated. However, I couldnīt just leave things like that and so I attempted to twist his arm up and out. He didnīt move an inch. I tried again with both hands, using all my might. But he used my strength against me and I fell down.
Sounds more like C than A or B.
But then again, does aiki only describe a