If I had the address, I would have delivered the package myself.
সঠিক উত্তরঃ
C.
had had the address
Explanation: Since this entire conditional-subjunctive sentence construction is in the past, the correct conditional form is past perfect “If I had had” rather than present perfect “if I had” with the present perfect subjunctive “I would have.” The correct punctuation between conditional “if” and subjunctive “would” parts is always a comma, never a semicolon or a dash.