Option 1 -> glittering means shining or sparkling, which doesn't capture the sensational nature of lurid headlines.
Option 2 -> frigid means extremely cold or unfriendly, unrelated to the dramatic quality of lurid.
Option 3 -> shocking means causing distress or disgust through sensational content, matching how lurid describes sensationalized headlines.
Option 4 -> austere means severe or plain, the opposite of the vivid, sensational meaning of lurid.
Hence, Option 3: shocking -> "Lurid" describes something presented in a sensational, graphic, or shocking manner, especially with disturbing or scandalous details. In journalism, lurid headlines are those that sensationalize events to grab attention, making "shocking" the closest synonym -> correct