To write 81,473 in words, break it into place-value groups.<br><br>
&bull; 81 thousands &rarr; "Eighty-one thousand"<br>
&bull; 473 &rarr; "four hundred and seventy-three"<br>
&bull; Combine: "Eighty-one thousand, four hundred and seventy-three"<br><br>
Option A says "eight hundred and fourteen thousand" = 814,000 &mdash; wrong.<br>
Option B says "eighty-one hundred" = 8,100 &mdash; wrong.<br>
Option C says "eight hundred and ten thousand" = 810,000 &mdash; wrong.<br>
Option D matches: eighty-one thousand, four hundred and seventy-three.<br><br>
Final Answer: D: Eighty-one thousand, four hundred and seventy-three