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Answer

Goji (Lycium barbarum and Lycium chinense). 

Yes the others are all dried grapes. Raisins are dried white grapes (often Muscatel), typically large, dark, and chewy usually with seeds. Sultanas are dried, pale green seedless grapes (often Thompson Seedless), which are smaller, lighter, and juicier. Currants are tiny, dried, seedless red grapes (Black Corinth). For the latest on research for dried grapes see this link