What percentage of the TPFDD feeding population is essential for determining Services' support capability?

The correct answer is 90%, which signifies the critical threshold required for assessing Services' support capability within the Total Force Data Distribution (TPFDD) feeding population. This percentage represents the minimum critical mass of data needed to ensure that decision-makers can effectively gauge the availability of resources and support units during operations.

In strategic planning and operational readiness, having a reliable and nearly complete picture (90%) of the resource population is essential. It allows for a thorough analysis of logistical support capabilities and readiness. Relying on an insufficient percentage could lead to gaps in understanding the full scope of available support, which is vital for mission success.

When evaluating the other options, it's important to recognize that thresholds lower than 90%, such as 70% or 80%, could lead to potentially significant oversight in logistical planning. Thus, they do not provide a reliable foundation for the required analysis. On the other hand, aiming for 100% may seem ideal, but it is often impractical and not necessary for determining operational capabilities, as some degree of uncertainty is typically acceptable in operational planning. Therefore, 90% strikes the right balance between completeness and practicality.