Final answer:
In soccer, a player on the opposing team who tries to distract a player taking a free kick should receive a verbal warning for unsporting behavior. Further misconduct can lead to additional disciplinary action as per the Laws of the Game. Observers side-by-side are in the same reference frame.
Step-by-step explanation:
The scenario described in the question pertains to the rules of soccer regarding player conduct during the taking of a free kick. In soccer, if a player on the opposing team is waving his arms and jumping about in an attempt to distract the player taking the free kick, the proper response from the referee would be to issue a verbal warning to the player for unsporting behavior, which corresponds to option A. According to the Laws of the Game, which are maintained by the International Football Association Board (IFAB), such actions can be considered unsporting behavior, potentially warranting a caution.
If the player on Team B continues this behavior after the warning, the referee might take further action, such as issuing a yellow card. The Laws of the Game do not prescribe an indirect free kick simply for this behavior (option B), a two-minute penalty is not a part of standard soccer rules (option C), and the referee would not restart the free kick and allow the player to continue the actions (option D).
Regarding the reference frames mentioned, if you and a friend are standing side-by-side watching the game, you would both be considered to be in the same reference frame since you're both stationary observers observing the same event from the same vantage point.