A DOI is:
ADatabase Of Interest
BDate Of Issuance
CDocument Online Indicator
DDigital Object Identifier
Answer & Solution
Correct answer: D. Digital Object Identifier
1. DOI uniquely identifies a digital scholarly object.
2. It enables persistent citation.
3. Hence Digital Object Identifier.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Citation_