Concept:A synonym question requires selecting the option that is closest in meaning to the underlined word as it is used in the sentence.
Explanation:The correct option must express the same idea as the underlined word in its given context.
Here, the underlined word conveys the sense of being unusual or odd.
"Strange" captures this meaning directly and naturally.
"Abnormal" is close in meaning but often carries a stronger scientific or medical tone.
"Alarming" suggests something that causes fear or worry, which does not fit.
"Interesting" means attracting attention or curiosity, which is unrelated.
Therefore, the option that is nearest in meaning is "strange."
Answer:A. strange