GMAT Sentence Correction (SC) | Re: Just as listening to Franklin D. Roosevelt's famous fireside

While solving questions such as this one, a valuable suggestion is to read the question structure rather than reading the words.
For instance, you can read this question as:

Just as doing bla bla, modifier, so NOUN bla bla...
This is not correct since the structure should be Just as X, so Y where X and Y are similar in nature (If X is a verb, Y should
...

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