The correct answer is A. You flip a two-sided coin.
the fairest answer would be A. you flip a two-sided coin. a randomly generated number would not be fair, and your mom choosing would also not be fair, therefore the answer is You flip a two-sided coin.
good luck :)
Answer: 1/7
Step-by-step explanation: There are 7 days in a week. Hope this helps! ~Autumn~