Why does Radcliffe favor the term “romance” as the subtitle to “The Mysteries of Udolpho” ?

A. Radcliffe wants to emphasize the happy ending of the marriage of Emily and Valancourt.
B. It frees Radcliffe from a strict adherence to common life, allowing her to place Emily in challenging situations.
C. Radcliffe considers her work a continuation of the sentimental novel of the 18th century.
D. It acknowledges the lack of supernatural plot tricks.