What might happen without the responsibility of citizens to pay taxes or defend the nation

If citizens did not pay taxes, then government funding for things like roads, schools, healthcare and other things would not be possible. If no one worked in our services to protect the nation, then our country would be very easy to fall under the reign of others. We would be vulnerable to attack and unable to defend itself, in wars we would not be able to fight or protect our country.

the answer might be either a or c. can't be too sure , because i searched the web, but no valid answers came through.

i feel as if they would both catch on before to long because they would see them to frequent