How do I programmatically set the value of a select box element using JavaScript?

Question

I have the following HTML element:

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Answer 1

I'm afraid I'm unable to test this at the moment, but in the past, I believe I had to give each option tag an ID, and then I did something like:

document.getElementById("optionID").select();

If that doesn't work, maybe it'll get you closer to a solution :P