A researcher determined the amount of ducks that were in a pond over a four–year time span. The results are shown in the table below. Year Ducks
1 64
2 78
3 92
4 106

Select the equation that best models the amount of ducks that will be in the pond during the nth year.
an = 64 + 14(n – 1)
an = 50 + 14(n – 1)
an = 14 + 64(n – 1)
an = 1 + 64(n – 1)