Apossible attack on your combination-lock is a brute-force attack in which every possible input combination is tried. given the original design with a combination of three numbers between 0 and 15, how many possible input combinations exist? how about for the modified design with a combination of four numbers?

Ingrid started speaking about her slide presentation. when she clicked to th"third slide, which had just a picture of an elephant, she forgot what she wassupposed to talk about. what could ingrid do to avoid this situation in thefuture? oa. print handouts for her audience. ob. add presenter's notes to each slide. oc. add a video to each slide. od. save her slide presentation to a flash drive