Synonym of UBIQUITOUS

Answer: Option A

Inseparable : unable to be separated or treated separately.
Crowded : (of a space) full of people, leaving little or no room for movement; packed.
Solitary : done or existing alone.
Defensive : used or intended to defend or protect.
Ubiquitous : present, appearing, or found everywhere.

Synonym of Ubiquitous is Inseparable