Which of the following can act as possible stopping conditions in K$-$Means?

For a fixed number of iterations.

Assignment of observations to clusters does not change between iterations. Except for cases with a bad local minimum.

Centroids do not change between successive iterations.

Terminate when RSS falls below a threshold.

Options:

$1,3$ and $4$

$1,2$ and $3$

$1,2$ and $4$

All of the above