What is proper etiquette for starting a football game?

a. coin toss, with the home team calling heads or tails. winner gets to choose either to have his team start the game with the ball in their possession (receiving the kickoff) or picking which end of the field he wants for his team's 'territory.'

b. home team automatically gets to choose either to have his team start the game with the ball in their possession (receiving the kickoff) or picking which end of the field he wants for his team's 'territory’ because of home field advantage

c. coin toss, with the visiting team calling heads or tails. winner gets to choose either to have his team start the game with the ball in their possession (receiving the kickoff) or picking which end of the field he wants for his team's 'territory.'

d. the team with the most wins for the seasons gets to choose either to have his team start the game with the ball in their possession (receiving the kickoff) or picking which end of the field he wants for his team's 'territory.'