If you want to sync a list to SharePoint, you should choose option (d) Share. SharePoint integrates with Microsoft applications to help you sync and share data. If you want to sync a list from an application to SharePoint, the 'Share' tab is likely what you'll use to manage these sharing settings and features.
Can you start a new Word project from an existing Excel workbook? The correct answer is (a) Yes. You can create a Word document based on data from an Excel workbook. For instance, you can copy data from Excel and paste it into Word as a table or an editable object using the 'Paste Special' feature. This is useful for documentation or reporting that requires spreadsheet data to be included in a written document.
Documents on the (b) Recent list are dynamic. The recent list in programs like Microsoft Office tracks the files you have most recently opened or edited, making it a dynamic list that updates as you work on different documents.