The best way for a country to implement foreign policy is unilaterally. with military power. multilaterally. with hard power.

Multilaterally

Multilateral foreign policy involves more than two parties to a treaty. This is the best way to implement foreign policy as it involves may parties ensuring that the treaty is agreeable and benefits numerous parties. This will ensure compliance and benefit all signatories

the answer is "focused on"

lol gave an answer 1 week that's the answer for those who need it in the future xd

i would think the answer is between b and d i would say d sorry if wrong