Celestial Brightness

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The brightness on Earth of such celestial bodies like stars invariably depends both on the radius of the luminescent object and its temperature.

Review: Celestial Brightness


Explanation

Creating a filter: the words "such" and "like" do not operate together as they have been combined in the original sentence. The proper idiom is "such as." So (A) is out and we'll for a solution such as the phrase "such as."

Applying the filter: we are left with choices (C) through (E). Within those choices, there is variation in the placement of "both." It can be "both on X and on Y." Or it can be "on both X and Y." Choice (C) has an invalid treatment of "both." So does (D). The correct answer is (E).  


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