Answer: B) impairs; called off
Explanation:
"Impairs" is the right word to put in the first blank because in this context it is used to describe situations where it is not very easy to see what is ahead of you. In other words, a person's view is being influenced such that they can't see much.
For the second blank, "called off" is good because it describes the remedial action the authorities took because of the impaired visibility.
To expand the vocabulary used in the writing or to find a word that fits perfectly for example "Similarly" is a great word, however "Correspondingly" might fit the situation better
You answer will be sentimental I'm pretty sure have nice day
Serbian is the only adjective.