Option 1 -> "Shallow" means lacking depth or substance, not the same as overused or clichéd.
Option 2 -> "Trite" means overused and lacking originality, a direct synonym of hackneyed.
Option 3 -> "Innovative" means new and creative, the opposite of hackneyed.
Option 4 -> "Jagged" means having rough or sharp edges, unrelated to the concept of being overused.
Hence, Option 2: trite -> "Hackneyed" and "trite" both describe expressions or ideas that have been used so frequently they've lost their freshness and impact, making them clichéd and unoriginal -> correct