Final answer:
The line refers to 'c) A storm,' underscored by the descriptions of lightning, thunder, rain, and fear which are typically associated with stormy conditions.
Step-by-step explanation:
The referenced line, "There was lightning and thunder and rain. We was scared!" is describing a storm. The excerpts provided all depict powerful storms with thunder, lightning, and in some cases, an overwhelming sense of fear and awe. These atmospheric conditions are common to storms, and the description of the somber clouds, the fierce wind, and the intense sounds of the storm further confirm that 'c) A storm' is what is referred to in the line.