Please help me thanks

I would go with the last Heat from the Great Victoria Desert.

Explanation:

Any powerful or extremely powerful storm is created from the convergence of warm/very warm and colder systems. In the plains this convergence will form tornadoes while, over many oceanic territories, stronger winds will form a storm on a much larger and more lengthy scale. In this case, I would go with the last answer because since cool air is largely as contributing factor in ocean temperatures, heat waves from deserts would cause a convergence of these systems, creating a powerful storm that is to be expected in many parts of the world.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

i know social security wasn't one.

explanation:

hope my answer has you!