For the Data Given Below, What Would the Naive Forecast

Multiple Choice

For the data given below, what would the naive forecast be for period 5? $$\begin{array} { | c | c | } \hline \text { Period } & \text { Value } \\\hline 1 & 58 \\\hline 2 & 59 \\\hline 3 & 60 \\\hline 4 & 61 \\\hline\end{array}$$

A)  58
B)  62
C)  59.5
D)  61
E)  cannot tell from the data given