Read the selections from the introduction of the article.

The ability to transport goods and human beings efficiently is fundamental to economic life in modern societies.

Improving technology and impressive feats of engineering rapidly transformed the North American continent. Which two words would BEST replace "fundamental" and "impressive" in the selections above?

(A) key; miraculous

(B) essential; strange

(C) basic; new

(D) central; wondrous

The two words that would best replace "fundamental" and "impressive" in the selections above would be central and wondrous.

Option: (D)

Explanation:

The idea of the fundamentality of the systems of transportation of goods and human beings presented here can be referred to as of prime importance around which most other factors of the economy revolve. Hence, the word fundamental can be replaced by 'central'. The fact how impressively the new and improved technologies work and contribute to economic growth would simply make anyone wonder about the efficiency of technology. Hence, the world impressive can be replaced by 'wondrous'.