The green supernova is still __________ cosmetologist , as it has never been seen clearly , making it impossible to study its nature .
A. Admiring for
B. Enigmatic to
C. Dangerous to
D. Famous among
Option B : this sentence has a cause and effect relationship as indicated by the word “
as “ If the green supernova “ has never been seen clearly “ once could logically conclude
that it would be “ enigmatic “