Mario Is Trying to Finalize an Equipment Order Before Work

Multiple Choice

Mario is trying to finalize an equipment order before work.He is using his smartphone while riding the train to the office,but for some reason not all the content is appearing.Mario tries turning the phone in his hand to see if landscape orientation would help with the layout problems,but it does not.What have the developers failed to do correctly so that Mario can interact the webpage on his smartphone?

A) Code the site using HTML tags.
B) Include all the server-side scripts for searchability.
C) Enable search engine optimization.
D) Use responsive design.