relation between different mail fields

Is it possible tho have a drop-down menu in the email form that has a relation to the second drop-down menu.

To explain in more details:

In the first drop-down menu you can select between 1,2 and 3.
Depending on the choice 1,2 or 3. There will appear a second drop-down menu. The content of this drop-down menu depends on the choice made in the first drop-down menu.

When chosen for 1, then the second drop-down menu will be. a,b or c
When chosen for 2, then the second drop-down menu will be. k,l or m
When chosen for 3, then the second drop-down menu will be. x,y or z

And if possible this will repeat with a third drop-down menu.
If it doesn’t work with drop-down menu’s but with checkboxes or radiobuttons then this is fine also.

Thanks for responding.

Raymond

https://wordpress.org/plugins/contact-form-7/