On a coordinate plane, trapezoid k l m n is shown. point k is at (negative 2, negative 4), point l is at (negative 4, negative 2), point m is at (negative 2, negative 1), and point n is at (negative 1, negative 2).
in the diagram, kl = 2 startroot 2 endroot, lm = startroot 5 endroot, and mn = startroot 2 endroot. what is the perimeter of isosceles trapezoid klmn?

startroot 2 endroot units
startroot 5 endroot units
3 startroot 2 endroot + 2 startroot 5 endroot units
4 startroot 2 endroot + 2 startroot 5 endroot units