Ananaya plz answer

Dear Student,
A primary key is a key in a relational database that is unique for each record. A relational database must always have one and only one primary key. Hence the answer to your question is Primary Key(option C).
Regards

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Rashid tm what's app nhi chalate?
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Hm chlata hu me
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Gone kya
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Nhii
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Okay
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She accepted my friend request....
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I don't know
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See ananya ne Meri friend request accept kar ki....

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Kr li kya accept
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Yes...
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Okay
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Tm kb se ho merit pe
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When she will come snap me bolo na merit pe aae
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8th se
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Thoda der k liye inst pe aao to
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Okay
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