Some critics of space exploration programs claim that they are too costly to be justified.
Facts
causal (undermine / direct consequence)
Budgetary pressures >> less safe to be cheaper/quicker (manufacturing flaws)
attributions
some critics: space programs too costly most experts: 1/70 chance of explosion per flight
Evaluate
When we see this Proposition / Generalization twist on Most Supported questions, the correct answer usually addresses a Causal Difference-Maker or some Pivot-Tension.
Here there is some of both. There is a concern about cost in the first sentence and a concern about safety in the second sentence. And apparently, those two things are in tension with each other, as the third sentence reveals (trying to cut costs meant we made things less safe).
Goal
Find the most provable claim (safer wording preferred). It'll probably relate to this causality / tension.