Answer:
Embargo = 3.
Isolationist 2.
Lend-Lease program 1.
Step-by-step explanation:
A embargo is a ban on trade or commercial activity with particular countries
a Isolationist is wanting to be isolated.
isolated = alone
the lend lease program was how America supported britian in early ww2 supplying weapons, ammo, and vehicles it clearly fits 3.