Great question. I got it wrong, because my reading comprehension needs to improve. I saw the foreign keys, the question asked about an index that supports those foreign keys, and I incorrectly made an surmised that the question was assuming the indexes were present, even though they are not implicitly created by the statement. The mistake is mine. You are one of the few question providers whose questions I can take a face value, and I needed to do that here.

Thanks again, and I look forward to your next question.

Matt