Which agreement did Hitler sign with the Pope in 1933 to control the Catholic Church?

The correct choice is the Concordat, which was an agreement signed between the Nazi government and the Vatican in 1933. This agreement aimed to regulate the relationship between the Catholic Church and the Nazi state, ensuring that the Church would have certain rights and autonomy in German society while ultimately aligning the Church's activities with state interests.

By signing the Concordat, Hitler sought to placate Catholic citizens and prevent potential opposition from the Church, which had significant influence over a large segment of the German population. The agreement allowed the Church to maintain its religious activities in exchange for not interfering in political matters. This was a strategic move by Hitler to gain legitimacy and support, as well as to suppress dissent among Catholics.

The other agreements mentioned do not pertain to the relationship between Hitler and the Catholic Church. The Munich Agreement involved negotiations regarding Czechoslovakia, the Veracruz Concordat is not a recognized term in this context, and the Reichstag Agreement does not exist. Thus, the Concordat is the only relevant and correct answer here.