Populating dropdown menu using JS loop

For a multiple choice question (e.g., a drop-down) Qualtrics only records choices it knows about. You can't use JS to add choices on the fly.
What you could do is use a text entry question, hide the text entry box, and use JS to create a select (i.e., drop-down) on the fly. Then you could have JS copy the selected value into the hidden text entry field.

TomG thank you so much! I have this mostly solved. Last question: how do I copy the selected value into the hidden text entry field?
JS:
Qualtrics.SurveyEngine.addOnload(function()
{
jQuery(".InputText").hide()


// inspired by https://stackoverflow.com/questions/32925880/using-javascript-to-loop-through-drop-down-html-array
var sex = [];
var N = 1000;


for (var i = 0; i <= N; i = i+25) {
x = i / 100
x = "$" + x.toFixed(2)
   sex.push(x);
}


/* var sex = ["male", "female", "unknown"];*/


for (i = 0; i < sex.length; i++) {
  var opt = document.createElement("option");
  document.getElementById("m").innerHTML += '' + sex[i] + '';
}


});
Question text html: