أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
A. estimated disposal data
B. source
C. first cost
D. All of the above
E. None of the above
D will be correct answer................
D. All of the above
A. estimated disposal data
B. source
C. first cost
D if source means Vendor. Otherwise AandC.
It seems all of them is correct