Which of the followings is correct?

Weighted moving average with $n=1,$ i$.$e$.$ WMA$(1)$ is the same as the naive method.

Moving average with $n=1,$ i$.$e$.MA(1)$ is the same as the naive method.

Naive method with $n=1$ is the same as moving average.

Naive method with $n=1$ is the same as weighted moving average.

Naive method will always give the worst forecasts because it is short$-$sighted.