Final answer:
The primary reason for Christopher Columbus' first voyage across the Atlantic in 1492 was to find a new trade route to Asia.
Step-by-step explanation:
The primary reason for Christopher Columbus' first voyage across the Atlantic in 1492 was to A) To find a new trade route to Asia. Columbus sought to find a quicker sea-route to Asia in order to bypass the difficult and expensive land-based trade routes. His aim was to establish trade relations with the East Indies to tap into the lucrative spice trade.