In which event did french officials attempt to bribe american officials, thereby causing great resentment toward the french?

The answer is the The XYZ Affair. It was a a political and diplomatic incident between French and United States diplomats in 1797 and 1798 early in the administration of John Adams that resulted in a limited, undeclared war known as the Quasi-War. U.S. and French negotiators bring back peace with the Convention of 1800, also known as the Treaty of Mortefontaine. The name derives from the substitution of the letters X, Y and Z for the names of French diplomats Hottinguer (X), Bellamy (Y), and Hauteval (Z) in official papers released by the Adams administration.

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.