Lutsina: Because futuristic science fiction does not need to represent current social realities, its writers can envisage radically new social arrangements.
Thus it has the potential to be a richer source of social criticism than is conventional fiction.
Priscilla: That futuristic science fiction writers more skillfully envisage radically new technologies than new social arrangements shows how writers’ imaginations are constrained by current realities.
Because of this limitation, the most effective social criticism results from faithfully presenting the current social realities for critical examination, as happens in conventional fiction.Lutsina and Priscilla disagree with each other about whether
Lutsina favours FSF and Priscilla favours CF as suggested in the highlighted parts.(A) some science fiction writers have
succeeded in envisaging convincing, radically new social arrangements - WRONG. Wrong by the core. It suggests as if they agreed on science fiction writers' success.
(B) writers of conventional fiction are more
skillful than are writers of futuristic science fiction - WRONG. Skillfulness is not relevant.
(C) futuristic science fiction has more promise as a source of social criticism than does conventional fiction - CORRECT.
(D) envisaging radically new technologies rather than radically new social arrangements is a
shortcoming of futuristic science fiction - WRONG. Based on similar grounds as A this is also wrong. They don't agree on shortcoming of FSF.
(E) criticism of current social arrangements is not effective when those arrangements are contrasted with radically different ones - WRONG. A bit confusing and time consuming. But is deals with Priscilla's point of view only wherein Lutsina is not concerned about that.
Answer C.