Which of the following thesis statements is the most specific? in romeo and juliet

a. romeo and juliet explores how a family feud can result in tragedy for young lovers.
b. romeo and juliet is a famous love story about star-crossed lovers in sixteenth-century verona.
c. romeo and juliet is about the prevalence of underage marriage in the sixteenth century.
d. romeo and juliet explores the place of religion in love and marriage.