Select the option that can be used as a one-word substitute for the given group of words.
Giving the worrying impression that something bad is going to happen

Correct option is C

Meaning of all the words given:
 Desolate: A place or situation that is deserted, empty, or dismal, and lacking any signs of life, comfort, or happiness.
 Suspicious: Having or showing a cautious distrust of someone or something; feeling that someone or something is not to be trusted.
 Ominous: Giving the impression that something bad or unpleasant is going to happen; threatening; inauspicious. It can refer to something that is likely to happen in the future and may be a warning or a foreboding.
 Bleak: A place, situation, or future that is unwelcoming and lacks any prospect of success or happiness. It can also refer to a weather condition that is cold, harsh, and dreary.
 Thus, the option that can be used as a one-word substitute for the given group of words "Giving the worrying impression that something bad is going to happen" is (c) Ominous.