Kindly install & activate woocommerce plugin and check it.
Newsletter
To create sign up form for “Newsletter and Campaign”:
Added “Mailchimp for WP” plugin and activated it.
Used mailchimp option in the plugin menu to add API key
In order to get API key, I created an account in mailchimp.com
Created a project which was teknik.me
Username: teknikme password: T3kn1k(me)
Then needed to go to API key from mailchimp dashboard and find it
Copy the API key to wordpress dashboard—> Mailchimp for wp–>Mailchimp
After Save Changes the Status must be changed to Connected
to create a signup form, click on Mailchimp for wp–> Form
Created sign up form by html and CSS inside the Form code part.
Can see the changes on the right side in Form preview part.
To connect Radio buttons ( Newsletter and Campaign) needs to create the option first in mailchimp.com dashboard.
In order to creat new field in Mailchimp.com, open dashboard and do following steps: Audience–> Setting–> Audience fields–> add a field –> choose Radio buttons