Which command would an IT Administrator need to run to check the status of the Tunnel Per-App VPN service on the Unified Access Gateway (UAG)?

Users are reporting to IT they are getting an error when attempting to launch mobile apps that require VPN to access.
Which command would an IT Administrator need to run to check the status of the Tunnel Per-App VPN service on the Unified Access Gateway (UAG)?
A. systemctl status pavpn
B. systemctl status vpnd
C. service status vpnd
D. service status pavpn