Which phrase is the best example of parallelism ?

The answer to your question would be that the best example of parallelism is the following sentence: The mud covered his hands. It covered his face. It covered his jeans. Parallelism, aka parallel structures or constructions, is a balance between one or more sentences of similar phrases or clauses that also have the same grammatical structure.

Her eyes began to droop, her mind began to wander, and then her limbs softened.

Explanation:

APEX

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.