Option 1: Christopher is moving, and sees spit wads:
* "As Christopher hurtled through the air, he saw several spit wads." This clearly indicates that Christopher is the one moving, and the spit wads are stationary.
Option 2: The spit wads are moving, and Christopher sees them:
* "Several spit wads hurtled through the air, and Christopher saw them." This emphasizes the motion of the spit wads and makes it clear that Christopher is observing them.
Option 3: Christopher is stationary, and spit wads fly past him:
* "Christopher saw several spit wads hurtling through the air." This option suggests Christopher is standing still, and the spit wads are the objects in motion.
Option 4: Emphasize Christopher's speed:
* "Hurtling through the air at breakneck speed, Christopher caught a glimpse of several spit wads." This clarifies the action and the speed of Christopher's movement.
The best correction depends on the specific context and the meaning you want to convey.