Which of the following represents the Persistence Tactic of the MITRE ATT&CK Framework?

$1.$

Persistence Tactic: Techniques that adversaries use to keep access to systems across restarts, changed credentials and other interruptions that could cut off their access.

$2.$

Persistence Tactic: Techniques that adversaries use to gain higher$-$level permissions on a system or network.

$3.$

Persistence Tactic: Techniques that adversaries use to avoid detection throughout their compromise.

$4.$

Persistence Tactic: Techniques adversaries use to gather information and the sources information is collected from that are relevant to following through on the adversary$$s objectives.