The green supernova is still ______ cosmetologists as it has never been seen clearly making it impossible to study its nature
[A].
admiring for
[B].
enigmatic to
[C].
dangerous to
[D].
exploited by
[E].
famous among
Answer: Option B
Explanation:
The sentence has a cause and effect relationship as indicated by the word as. If the green supernova has never been seen clearly one could logically conclude that it would be enigmatic.