SAT Question eccbf957: Probability And Conditional Probability answer and explanation with Desmos solution

Choice A is correct. The total number of possible outcomes for rolling a fair $14$ -sided die is $14$. The number of possible outcomes for rolling a $2$ is $1$. The probability of rolling a $2$ is the number of possible outcomes for rolling a $2$ divided by the total number of possible outcomes, or $\frac{1}{14}$.