6593. The relics of the Roman rule are still extant in England.

✅ The correct answer is option C.
Hidden : kept out of sight; concealed.

Scattered : occurring or found at intervals or various locations rather than all together.

Existent : having reality or existence.

Spread : open out (something) so as to extend its surface area, width, or length.

Extant : still in existence; surviving.

Synonym of Extant is Existent