Which of these forecasting techniques will yield forecasts that are identical to a naive$$ forecast?

Part $2$

A$.$

a trend line with beta$=1\mathrm{.}0$

B$.$

exponential smoothing with

alphaequals$=1$

C$.$

weighted moving average with

Upper D Subscript t Baseline equalsDt$=0\mathrm{.}5$

and

Upper D Subscript t minus $1$ Baseline equalsDt$1=0\mathrm{.}5$

D$.$

a simple moving average of two periods