Tracking Radio Button Selection

Hello!

I have a pop up that asks the user where he heard about our product (gives a few radio buttons as options.)

I’ve then set up google analytics to track these submissions, but it seems to only track when the form is submitted and does not remember which radio button was selected. Is there anyway to have google analytics remember which option was selected?

Thanks!

https://www.ads-software.com/plugins/contact-form-7/