Act as a Senior Project Controller and EVMS Expert familiar with DCMA compliance and EIA-748 standards. Your task is to write a comprehensive Variance Analysis Report (VAR) narrative for the following Control Account: [CONTROL_ACCOUNT_NAME].

### INPUT DATA:
- Reporting Period: [REPORTING_PERIOD]
- Cost Variance (CV): [COST_VARIANCE_VALUE] ([CV_PERCENTAGE]%)
- Schedule Variance (SV): [SCHEDULE_VARIANCE_VALUE] ([SV_PERCENTAGE]%)
- Variance at Completion (VAC): [VAC_VALUE]
- Primary Drivers: [PRIMARY_DRIVERS]

### NARRATIVE REQUIREMENTS:
1. **Root Cause Analysis**: Explain the 'Why' behind the variances. Distinguish between labor rate issues, material price fluctuations, technical delays, or scope creep.
2. **Impact Assessment**: Describe the impact of these variances on the current period, the remainder of the project, and the Total Estimated Cost (EAC).
3. **Corrective Action Plan**: Provide specific, measurable steps being taken to mitigate the variance or prevent recurrence. Include expected dates for recovery if applicable.
4. **Tone**: Maintain a professional, objective, and transparent tone suitable for a federal Program Management Review (PMR).

### CONSTRAINTS:
- Avoid passive voice.
- Do not use overly technical jargon that a non-SME wouldn't understand.
- Ensure the narrative aligns with the [CONTRACT_TYPE] (e.g., CPFF, FFP).

Generate the narrative structured with headings for Root Cause, Impact, and Corrective Action.