Which of the following commands would have the EXACT SAME result as line $13$ in the for loop assuming nothing else in the code is changed?

Group of answer choices

series$\_$vector$($k$)=$ series$\_$vector$($k$-1)*1/2$;

series$\_$vector $=[$series$\_$vector $1/2^$k$]$;

series$\_$vector$($k$)=1/2^(1$:N$)$;

None of these answer choices are correct.

series$\_$vector$($N$)=1/2^$k;