Car Prototype

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Using a 64-beam laser to create a detailed 3D map of its environment, the self-driving car prototype, although already obsolete, proved as equipped for navigating any conditions roads could put in front of it.

Review: Car Prototype


Explanation

Creating a filter: the original sentence is defective, since the comparative "as" always properly comes in pairs; the prototype must be as equipped as something else for the word to be used right.

Applying the filter: we eliminate choices (A) and (C). And also choice (D), for that matter: there's a sneaky "as" after "to be." We're left with (B) and (E). Choice (E)'s verb tense is unnecessarily complex; it appears to refer to some other time in the past that isn't mentioned in the sentence. The correct answer is (B).


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