The policy of cash and carry, the destroyers for naval bases deal, and the lend-lease act were all designed to

All of the aforementioned were designed to help the Allied powers during World War II. Even though the US wanted to stay "neutral" when World War II broke out, they did want to benefit by maintaining economic relationships with these countries.

The Lend-Lease Act is a perfect example. This allowed the US government to lend weapons and other materials to nations like France, Great Britain, and China during World War II. If the goods weapons/materials were destroyed, it was on the country using them to replace it.

The Cash and Carry policy was another example of the US government helping the Allied powers. This policy stated that countries may buy materials from the US, as long as they pay in cash and provide transportation for the materials at their own risk.

Both of these show that even though the US was not technically in the war yet, they heavily favored the Allied powers.