Option 1 -> Association refers to a connection or relationship with a group but lacks the element of loyalty or devotion.
Option 2 -> Falsehood means a lie or something untrue, which is completely unrelated to allegiance.
Option 3 -> Fidelity means faithfulness, loyalty, and devotion, making it a direct synonym of allegiance.
Option 4 -> Alienation means estrangement or isolation, which is actually the opposite of allegiance.
Hence, Option 3: Fidelity -> Both allegiance and fidelity convey the sense of steadfast loyalty and faithful commitment to a person, cause, or country -> correct