An argument claims that because a new advertising strategy significantly boosted sales for 'Brand X' in the apparel industry, implementing the same strategy will achieve similar success for 'Brand Y,' a luxury car manufacturer. This argument primarily relies on what unstated assumption?

The correct answer to the question "An argument claims that because a new advertising strategy significantly boosted sales for 'Brand X' in the apparel industry, implementing the same strategy will achieve similar success for 'Brand Y,' a luxury car manufacturer. This argument primarily relies on what unstated assumption?" is Option C: The success of an advertising strategy is transferable across fundamentally different industries and product types..

The other options — A) Brand X and Brand Y have similar marketing budgets., B) The target demographics for apparel and luxury cars are identical., D) Brand Y's current advertising strategy is ineffective. — are incorrect for this GMAT Exam Prep question. As explained above: The argument commits a false analogy, assuming that an advertising strategy effective for one type of product/industry will automatically work for another, despite significant differences. It presume…