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A – Correct: This option correctly uses “whether” to show the two way contrast of positive and negative action.
B – Incorrect: The conditional “if” does not present the intended contrast.
C – Incorrect: The phrase “was going to go ahead and” is unnecessarily wordy.
D – Incorrect: This option incorrectly uses the present tense “is” for an event that happened in the past.
E – Incorrect: The conditional if does not present the intended contrast in this option.