The organization did General George Marshall create was to fill the need for additional manpower, even after the draft was the Selective Service System. Thus the correct answer is B.
Manpower refers as the number of employees aor wokers providing their services for an organization. This manpower is the primary asset of the organization and helps in achieving the common objective.
To meet the demand for more personnel, General George Marshall established the organization. In the case of a national emergency, the Selective Service System provides personnel to the Department of Defense.
Therefore, option B Selective Service System is appropriate.
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