Directions: Read the given passage carefully and answer the questions that follow by selecting the most appropriate option.

Each year, millions of monarch butterflies undertake an awe-inspiring journey across North America, a biological marvel often referred to as the monarch butterfly migration. This migration is a testament to the butterfly's incredible endurance and navigational capacity, as it spans multiple generations and covers a distance of up to 3,000 miles.

Starting around the end of summer, monarch butterflies living in the north, especially those in Canada and the northern United States, begin their southern migration. The creatures instinctively fly to the warmer climates of California and Mexico to avoid the frigid winter of the north. This journey typically begins at the onset of cooler weather and shorter daylight hours, triggering a change in the monarchs that prompts them towards migration.

While the trip southward would be an arduous one for any creature, it's particularly remarkable for the monarch butterfly, which despite its small size and delicate appearance can fly between 50 – 100 miles a day. Nourished by summer's bounty of nectar-filled flowers across the United States and Canada, the butterflies store up energy for their challenging commute.

The extraordinary part of this journey is that the butterflies undertaking it are the third or fourth generation of the year, with each generation living only about a couple of months except for the migrating monarchs. Baffling scientists for years, these butterflies, without any prior experience, manage to find their way back to the very same forest locations their ancestors left in spring, navigating with the help of the position of the sun and the Earth's magnetic field.

Once they reach their southern destination, the monarchs roost in eucalyptus trees, clustering by the thousands on individual branches. There, they wait out the winter, living off their stored energy reserves until the beginning of spring, when the cycle starts again. Through this cyclical journey, the monarch butterfly lives, survives and prospers across generations, embracing a unique and miraculous blend of endurance, delicacy, and tenacity.