Answer:
A
Explanation:
Definition of alliance: a union or association formed for mutual benefit, especially between countries or organizations.
Insurance policy and definite strategy make no sense. However long-lasting friendship makes more sense than a strong relationship. The two nations are friends against the third party.
Because it was about me and an alien hanging out.
Answer: A
I hope this helps!
Something that is close to but not exactly the same as what ever the thing is