To write 39,650 in words, break it into place-value groups.<br><br>
&bull; 39 thousands &rarr; "Thirty-nine thousand"<br>
&bull; 650 &rarr; "six hundred and fifty"<br>
&bull; Combine: "Thirty-nine thousand, six hundred and fifty"<br><br>
Option A says "three hundred and ninety-six thousand" = 396,000 &mdash; wrong.<br>
Option B says "thirty-nine hundred" = 3,900 &mdash; wrong.<br>
Option C says "three hundred and ninety thousand" = 390,000 &mdash; wrong.<br>
Option D matches: thirty-nine thousand, six hundred and fifty.<br><br>
Final Answer: D: Thirty-nine thousand, six hundred and fifty