The statement which best sums up the passage is:

The passage's main argument is that as science progresses, superstitions ought to decline. However, it acknowledges they linger on. The passage explicitly states 'the increase of scientific knowledge does reduce superstition and also baseless guessing.' This is more accurate than saying superstitions 'disappear' (option 1, too absolute). Option (2) — 'irrational beliefs decline with the advancement of science' — best sums up the central idea.