If the efficiency of the algorithm dolt can be expressed as $O(n)=n^2,$

calculate the efficiency of the following program segment:

$i=1$

$lp(in)$

$j=1$

$lp(jn)$

dolt$(dots)$

$j=j+1$

end loop

$i=i+1$

end loop

end loop

$O(n^3)$

$O(n^5)$

$O(n^4)$

$O(n^2)$