Listing Options in Workforms

I am creating a form in which people will submit their food allergies. Currently, there is no option for people to list their allergies (as is natively possible in a dropdown column). The request is one of two things:
a) Allow an option in Workforms for submitters to utilize a native Dropdown column (meaning, they can write their own information and it comes up as Dropdown labels in the monday board).
b) From a long_text or text column in the Workforms & board, utilize AI prompt to create individual labels in the Dropdown column based on comma-separated values. This can be done either as AI or within Workflows.