Today’s sentence completion:

“It was difficult to believe that the sophisticated piece of technology had ——- through the centuries from such ——- and rudimentary apparatus.”

For the first blank, let’s think about what the technology might have done through the centuries.Changed? Developed? Something like that would make a great prediction for that missing word.

We know that this technology is now sophisticated, but it used to be “rudimentary”.  If you’re not familiar with that word, even the context tells you that it means something like the opposite of “sophisticated” – perhaps basic or crude would be good predictions for this blank.

Our sentence now says that a sophisticated piece of technology developed over time from a basic tool.  Makes sense!  Let’s find an answer choice that matches our predictions.

A, B, and C work with our prediction of the first blank, but of those only C fits with the second blank.