I tried option but still I’m unable to connect WiFi

Try to reboot your router. Unplug it, count to 10, plug it back in.

You are on your home wifi and not a hotspot or hotel right? Because if you’re in a hotel sometimes safari has a bad time pulling up the ‘agree to our terms’ page from open wifi spots. If you’re in a hotel or the like, try a different browser to see if you can get to the terms page

All is a lot - and we don’t know what you’ve tried. However, if you can describe the problem - and what you have actually tried - we will be better able to help you.

https://discussions.apple.com/docs/DOC-5931

Go to hear that you’ve resolved the problem.