A project is represented by the activity durations (in days,estimated at 90% likelihood of completion) and precedence requirements shown in the table.How many project buffers are needed if this project is managed using critical chain methodology? 
Definitions:
United States
A country in North America consisting of 50 states and a federal district, known for its diverse population and significant global influence in economic, political, and cultural realms.
Social Construction
The theory that our perceptions of reality are shaped by the collective agreement and language of our society.
Race
A social construct used to categorize humans based on physical characteristics, ancestry, and cultural heritage, often influencing social dynamics and power relations.
Jews
Refers to the members of an ethnoreligious group originating from the Israelites or Hebrews of the ancient Middle East, associated with the religion of Judaism.
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