Breathe deeply to help himself stay calm and think clearly.
A is a good answer aswell but i prefer C over it because u cannot just ignore your anxious thoughts, B is the worst case scenario and D is not that helpful, so for me it is C
The participial phrase is crunching popcorn and this would modifie girl
Spring (hydrology)
A spring may be the result of karst topography where surface water has infiltrated the Earth's surface (recharge area), becoming part of the area groundwater. The groundwater then travels through a network of cracks and fissure—openings ranging from intergranular spaces to large caves. The water eventually emerges from below the surface, in the form of a karst springs.
B hope this helps:)))))))