ExplanationThe astronomers have discovered objects at the edges of the universe, so you need a word that is consistent with that clue. Paranormal means beyond the scope of scientific understanding; it is usually used to describe supernatural things like aliens and ghosts. Viscous means fluid or sticky, so that word is definitely not consistent with the blank. Remote means distant, which would describe objects at the edges of the universe. The quasars have shown scientists something about the existence of stars, so blank (ii) must mean something like proof.
Distortion means changing, so that word is not consistent with the blank. Intuition is a feeling that something is true, but not actual proof. Corroboration means proof, and so it is a good fit for blank (ii).
Hence option A and D are correct!
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