When we're talking about financial value, the arguments that bring the money numbers are those that we have to pay attention to.
B, C and D do not talk about costs at all, but letter A makes it very clear that the cost of the execution was of 1.2 million dollars; that is, besides the cost with keeping the convicted in jail and feeding him until the day of his execution.
So the answer is "A. the state of Texas spent almost $ 1.2 million on the execution of Leonard Hughes"
