Answer: D
Explanation:
The type of writing in which the writer can use dialogue that directly addresses the reader is D. memoir. In a memoir, the author is often reflecting on personal experiences and memories, and it is common for them to directly address the reader to create a more personal and engaging connection. While other forms of writing, such as novels and poems, may also include elements of direct address to the reader, it is particularly prevalent in memoirs where the author is recounting their own life experiences and thoughts.