Carla does not contest Mark’s understanding. She suggests that Mark’s proposed process would generate biased versions of history.

Carla does not question this presupposition. In fact, it’s implied that Carla agrees that one person can understand another’s feelings because she suggests we can choose between different perspectives.

The selection involved is the selection of choosing which perspective is valid. The distorted result are the biased versions of history Carla claims Mark’s process would produce.

Mark does not state that he deplores a certain kind of historical writing. We cannot assume that just because Mark prefers historical writing to be done a certain way, Mark deplores other kinds of historical writing.

Carla does not address any of Mark’s self-interests. Carla addresses Mark’s argument directly without focusing on personal characteristics.