Final answer:
The answer to the student's question is b) Marriage Service; solemnity, which reflects the solemn and sacred nature of matrimony within the Anglican tradition, as outlined in The Book of Common Prayer.
Step-by-step explanation:
The title of the Marriage Service in The Book of Common Prayer indicates the solemnity of matrimony as well as the fact that its seriousness may not always be well understood. The correct answer is b) Marriage Service; solemnity. The Marriage Service is part of the Anglican tradition which recognizes marriage as one of the seven sacraments and views it as a solemn and sacred act that is sanctified by God. This reflects a theological stance that, despite variations in Christian denominations, generally views marriage with deep respect and gravity, often marked with various ceremonial practices and rituals.