N epiphany is often defined as a A. symbol of change. B. painful conflict. C. rising action. D. sudden insight.

D - Sudden insight. Basically what this means is it is a moment of sudden realisation of a particular thing, for example realising your method of working is very tiresome and hard and you find a more effective and efficient way. This is a crucial aspect of English and English literature as described in many forms of texts such as creatives, plays, novels, non fiction, poems and etc.

Sudden Insight. The character has had a realization of something important.