Final answer:
The two groups of members in the House of Lords are the Lords Temporal and the Lords Spiritual, the latter consisting of 26 bishops from the Church of England.
Step-by-step explanation:
In the House of Lords, there are indeed two groups of members: the secular Lords Temporal and the Lords Spiritual. The correct answer to which group consists of 26 members of the Church of England who have an involvement in the passing of British law is Lords Spiritual. These members include bishops who play a role in legislation, symbolizing the historical relationship between the Church and the state.