As version 1.4.1 we added a fancy new attribute called select_text and it works like this:
[archives type="monthly" limit="7" format="option" select_text="Choose Wisely"]
weekly:
- Mon, 30th November, 2020–Sun, 6th December, 2020
- Mon, 23rd November, 2020–Sun, 29th November, 2020
- Mon, 16th November, 2020–Sun, 22nd November, 2020
- Mon, 7th September, 2020–Sun, 13th September, 2020
- Mon, 3rd August, 2020–Sun, 9th August, 2020
- Mon, 13th July, 2020–Sun, 19th July, 2020
- Mon, 8th June, 2020–Sun, 14th June, 2020