From the given options, select the pair of words which carries the same relationship to the given pair of words:

Dull : Bright

Forsake : Discard

The answer is Forsake : Discard.

The words dull and bright have opposite meanings, as dull means not shiny or not clear, while bright means shiny or clear. The words forsake and discard also have opposite meanings, as forsake means to abandon or give up on something, while discard means to throw away or get rid of something.

The other options do not have the same relationship as the given pair of words. Lean means thin or slender, while slender simply means not fat or not plump. Fragile means easily broken or damaged, while delicate means fine or dainty. Harmony means a pleasing combination of sounds, while discord means a harsh or unpleasant combination of sounds.