What's wrong with this code?

Question

https://code.sololearn.com/WIcVEL47Q4kZ/?ref=app

Answer 1

Add
value="Red"
and
value="Blue"
in both the input to make it work properly

Answer 2

Currently the value of both the radio button is ""

If you want to define value then add this to the attributes of both the radio buttons:
value="Red"

Then your program will work fine.

Answer 3

Thanks. It worked