How can you ensure that your web pages are compliant with a w3c standard?

Chloe is building a kiosk-based excel application. she wants to make some modifications to the screen elements in order to keep users from being distracted by parts of the application that are irrelevant to her application. she turns to henry for guidance as she knows he built a similar solution earlier this year.chloe has decided to hide the worksheet gridlines and the vertical scroll bar. what does henry tell her to use to do this? a) screen elements dialog boxb) display options dialog boxc) customization dialog boxd) excel options dialog box

Guys do you know sh27 cause he hacked me : ( pidgegunderson my old user

Emma is using an artificial intelligence system, which contains information on botany, to identify a type of plant from an image. what type of ai is emma using?