The Quality of a Discussion Often Depends on How Closely

Short Answer

The quality of a discussion often depends on how closely the parties attend to the same issue. For the passage below, determine whether the speakers are clearly disputing the same issue, or whether somebody is missing the point.
A: Experimentation on animals? Horrid, awful, immoral! No argument would justify experimenting on animals that wouldn't also justify experimenting on humans.
B: You're overlooking all the medical advances that have resulted from experimenting on animals.