The exhibit shows a relation for a company projects. Which candidate key(s) would best serve as the primary key for this

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answerhappygod
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The exhibit shows a relation for a company projects. Which candidate key(s) would best serve as the primary key for this

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The exhibit shows a relation for a company projects. Which candidate key(s) would best serve as the primary key for this relation?
The Exhibit Sho 1
The Exhibit Sho 1 (70.24 KiB) Viewed 77 times
A. S_Date and E_Date
B. ProjJD
C. ltem_Num and E_Date
D. Proj_ID and Item_Num
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