With whom did Cato the Elder serve as both consul and censor?

Cato the Elder served as both consul and censor alongside Fulvius Nobilior. This relationship is significant in Roman history, as both men held these prestigious offices during pivotal periods in the Roman Republic. Cato, notable for his staunch traditionalism and opposition to Hellenization, exemplified the values of the old Roman state, while Nobilior was a representative of the emerging senatorial elite.

The collaboration of Cato and Nobilior during their respective terms as consul in 195 BCE and later as censors in 184 BCE highlights their influence over Roman political and social reforms. Cato's tenure as censor was particularly important because it allowed him to implement moral legislation and push back against practices he deemed detrimental to Roman values, illustrating the lasting impact of their combined authority during that time.

The other figures listed, Pacuvius, Ennius, and Valerius Flaccus, while important in their own right, do not share the same historical connection with Cato in these specific roles, making Fulvius Nobilior the correct answer regarding their joint service as consul and censor.