Concept:The underlined word "ominous" means suggesting that something bad or unpleasant is about to happen.Explanation:"Ominous" describes a feeling that danger or trouble is coming."Portentous" also means giving a warning sign that something bad or unpleasant will happen."Forbidden" means not allowed."Prophetic" means predicting what will happen in the future."Suspicious" means causing distrust or doubt.Therefore, "portentous" is nearest in meaning to "ominous."Answer:B. portentous