I believe the answer is A. A Venn diagram
A Venn diagram is typically used to compare two or more objects.
In this case, the content within the two passages.
Besides stating that the correct answer is the first one (the church lost some of the influence it had during the height of the French Revolution), here is the explanation to better grasp the concept:
The Concordat of 1801, is an agreement signed on July 15th, between Napoleon, and the church representatives, in Rome and Paris.
This agreement defined the position of the Roman Catholic Church in France, put an end to the rupture caused by the reforms carried out by the church, and the confiscations that took place during the French Revolution.
This agreement, gave the first Consul (Napoleon), the right to nominate bishops, and new seminaries were established.
