Which rodent, found in high-elevation talus slopes of the Rocky Mountains and Sierra Nevada, is known for its high-pitched 'eep' alarm call and for gathering 'hay piles' of vegetation for winter?

• A Marmot
• B Pika ✓
• C Ground squirrel
• D Vole

The pika (Ochotona princeps) does not hibernate, instead surviving winter by consuming the dried vegetation it collected and stored during summer months in its rocky habitat.