Which of the following is NOT a category for individual awards?

The selection indicating that "Unit Citation" is not a category for individual awards is accurate because it represents a type of collective recognition rather than an individual honor. Unit Citations are awarded to units as a whole for acts of valor or extraordinary service, thus recognizing the efforts and accomplishments of an entire organization rather than individual soldiers.

On the other hand, the other choices illustrate distinct categories of individual awards. The Good Conduct Medal is awarded to individual service members for exemplary conduct, efficiency, and fidelity in active federal military service. The Service Medal typically honors individual achievements in specific service efforts, while Decorations pertain to individual awards like the Medal of Honor or various service crosses, which recognize significant acts of heroism or exceptional service by individual soldiers. This distinction clarifies why Unit Citation does not fit within the realm of individual awards.