The correct answer is Single Level Group By Report.

Single Level Group By Report groups issues by a single field such as a custom field and shows aggregated counts and status information for each group so Amira can group by the Deployment Environment field and see the overall status for Production and Non Production.

Time Tracking Report focuses on original estimates, time spent, and remaining time and does not provide a grouped status summary by a custom field.

Two Dimensional Filter Statistics Report creates a matrix of counts by two fields and is meant for cross tabulation rather than a simple single-field group with an overall status summary.

Average Age Report shows how the average age of unresolved issues changes over time and does not present grouped status summaries by a custom field.

Pie Chart Report can show distribution of issues by a field but it does not display the overall status per group in the same way as a group by report and is less suitable for a status summary per Deployment Environment.

Resolution Time Report measures time to resolution and related metrics and does not group current issue status by a custom field for a grouped status overview.

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