Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

To lengthen a pattern piece for sewing a garment, cut the paper pattern where indicated. It will normally state "lengthen or shorten here". Open the cut to the desired amount you need to add to your pattern. Place a piece of tissue paper underneath and tape in place. Keep the grain line correct and even. Make sure you do this to all your pattern pieces used for the garment.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.