Which statement most clearly links the evidence and conclusion for an argument about the positive effects of video game playing?
a) because video games are worth playing, they develop a person's hand-eye coordination.
b) video games are worth playing because they develop a person's hand-eye coordination.
c) if video games are worth playing, then they develop a person's hand-eye coordination.
d) video games are not worth playing because they develop a person's hand-eye coordination.