Final answer:
The polar jet stream flows from west to east in both the Northern and Southern Hemispheres, influenced by Earth's rotation and atmospheric pressure gradients.The correct option is C.
Step-by-step explanation:
The polar jet stream flows from west to east in C. both the Northern and Southern Hemispheres, influenced by the Earth's rotation. This phenomenon occurs due to the Coriolis effect and pressure gradients in the Earth's atmosphere. Jet streams follow the boundaries between hot and cold air, with significant impacts on weather patterns and climates globally. They exist in both hemispheres, creating similar but opposite patterns, reflecting the Earth's sphericity and rotation.