You are using a worksheet reference when supplying values to a drop$-$down menu. A range of values in the range A$2$:A$6$ is supplied directly inside the data validation window.

Which of these is the right way to enter the range to prevent the range from changing as the data validation is applied to other cells?

A $$2$:$A$$$6$

None of the mentioned options

SA$2$:SA$6$

$A$$2$:$A$ $6$