For the first question the answer will be B) Uncontrollable. Social security budget uses a large part of the federal budget in order to work, and as this budges increases faster than tax revenue it is known as an uncontrollable budget.
For the second question the answer will also be B) Protectionism. This practice helps shielding or protecting the country's industry by adding a tax on imports, so the national goods remain on a lower price than imported goods.