Final answer:
The Book of Common Prayer, introduced in 1549 and authored by Thomas Cranmer, is the liturgy book with largely Protestant doctrine and rituals for the Church of England.
Step-by-step explanation:
The liturgy book introduced in the Church of England in 1549 during the reign of Edward VI, and written by Thomas Cranmer which contained largely Protestant doctrine and rituals is the Book of Common Prayer (Option A). The Book of Common Prayer was a significant shift from the traditional Catholic rituals and played a pivotal role in defining the religious practice of the Anglican Church. Its theology represented a compromise, incorporating elements of Calvinist theology while retaining some Catholic practices, such as the inclusion of seven sacraments, though only baptism and communion were given emphasis in typical Protestant fashion. The Book of Common Prayer was officially established as part of the religious settlement under Elizabeth I, via the Act of Uniformity in 1559, which became a foundational element of Anglican worship and remains so into the twenty-first century.