Select the option that can be used as a one-word substitute for the given group of words.
That which is no longer in existence

Correct option is A

The correct one-word substitute for the given phrase is "Extinct".
· Extinct: Something that no longer exists, especially a species, tradition, or practice. (विलुप्त, समाप्त)
· Example: Dinosaurs have been extinct for millions of years.
Meanings of other given options:
· Removed – Taken away from a place or position. (हटाया गया)
· Vanished – Disappeared suddenly. (गायब हो गया)
· Destroyed – Completely ruined or demolished. (नष्ट किया गया)
Thus, "Extinct" is the best one-word substitute for "That which is no longer in existence."