@ArielLeslie gave you the example, the way to create a radio is by specifying ‘radio’ on the ‘type’ attribute
from my knowledge ‘for’ goes together with a label of that same name e.g ‘for=name’ should be in a tag for a list called name or in your case for the radio button.
Don’t panic too much try to see the answer in the instruction, if it is too hard, there is always a hint you can use.
How to create a radio input is explained with the code example.
The for attribute is an attribute on the label that helps with accessiblility for people who use assistive technologies.
You don’t need to get the id. You create it. If you look at the second code example in the description it has code that includes both for and id attributes.