Problem 1: [40 points] Write a PL/SQL function that given email of an editor, compute the number of papers assigned to the editor with pending reviews. A paper with pending review means that the paper has some reviews with NULL receive_date. This function also checks a special case when the editor email does not match any existing editors, and returns -1 in this case.

You are almost finished updating a web site. as part of the update, you have converted all pages from html 4.0 to html5. the project is currently on schedule. however, your project manager has been asked by the marketing team manager to justify a day of time spent validating the site's html5 pages. the marketing team manager does not have technical knowledge of the internet or the web. which is the most appropriate explanation to provide to the marketing team manager?