Your Jira has 25,000 active users across the globe using 100 projects with over a million issues. Another administrator

[answerhappygod]

Your Jira has 25,000 active users across the globe using 100 projects with over a million issues.
Another administrator has made a change to a field configuration scheme and you now need to re-index Jira.
What would be the impact of rebuilding the index in the foreground?

A. Issues will take longer to display during the re-index.
B. Database backups cannot be run until the re-indexing is complete.
C. The configuration change will not be applied until re-indexing is complete.
D. Searches using the field may show erroneous results.
E. All users will be locked out of Jira until re-indexing completes.