Presentations can be saved by

clicking on the save icon
selecting save from the file menu
both of the above
neither of the above

1   d. matching

2 c. it will provide you time to look for the answer.

it would be a. excessive network collisions or d. slow connectivity between devices those would be my answer.

browsing like internet search? don't look at anything stupid. or set up restrictions on ur device's search engine. and if something suspicious comes up don't be dumb and click on it. i hope that's what ur question meant.