In order to scrape for an option, simply type OPTION in the element drop down of the scrape dialogue. When working with numeric options (for example: if a month is listed as 12 instead of december) you'll want to reference the month with the domid instead of the value of 12. So if your scraped data looks like this:
35(457) 12 = [id]: [value]: 12
your script would look as follows: