What science-fiction permise is the best example of irony ?

a. the desire to eliminate disease leads to a future in which no one gets sick.
b. the desire to decrease prejudice leads to a future in which ” race “ no longer exist as a concept.
c. the desire to gain power leads to a future in which the united states becomes a dictatorship
d. the desire to keep people secure leads to a future in which the military controls everything .