I doubt.. the answer. The first part of the sentence which gives the reasoning is in present tense. Logically, the conclusion should be drawn within the same time frame. hence.. the underlined part should be in simple present.
"it" i think is right.. since.. the subject( which is a random country concert featuring recognizable band) is a general one and can be used.
Need your opinion.
Sorry our explanation wasn't able to demystify the tricky question for you. I'll call this to our test teams attention, and we'll see if it needs revision. However, our answer is definitely correct.
The 'will' is fine here because we are making predictions for the future. You're right that changing tenses can be a GMAT warning sign, but in this case it's perfectly logical. Consider "Because I am studying for the GMAT, I will do well." The premise and conclusion do not necessarily have to be in the same time frame.
As for the 'it', using a pronoun refers to the noun earlier in the sentence--in this case, as you said, 'concert.' However, if we use 'it' we're referring to the SAME concert! The 'it' in choice A seems to imply that the same
one will move from the north to the south, or exist simultaneously in both locations, attracting different crowds in different places. This isn't logical! Indeed, we must compare two different concerts, since a concert is a one-time, one-location event. Thus, (E) is the best choice.
Let me know if I can answer any other questions about this or other problems, and best of luck preparing!
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