When Two People Jointly Perform Reaction Time Tasks

When two people jointly perform reaction time tasks,

A) They readily model each others' mental states
B) They model each others' mental states only very gradually and only if their responses have extraordinarily long reaction times
C) They never model each others' mental states
D) Their reaction times and accuracy are so dramatically different from reaction times and accuracy obtained in solo performance that it is pointless to compare one- and two-person reaction time experiments