During play, the referee observes a player with a glucose monitor attached to their arm outside the coverings of their jersey. The referee should:

a$.$

Instruct the player to leave the field of play at the next stoppage as this is illegal equipment. If this is the first instance of illegal equipment for the team, the referee should caution $($yellow card$)$ the head coach. If this is not the first instance of illegal equipment, the referee should caution $($yellow card$)$ the player.

b$.$

Instruct the player to leave the field of play at the next stoppage of play as this is improper equipment due to not being covered by the jersey. No caution $($yellow card$)$ is required.

c$.$

Allow play to continue. This is a medical appliance$/$device which is not considered wearable technology.

d$.$

Since this is considered wearable technology and wearable technologies cannot be on the arm, ask the player to move the monitor.