Why is the atmosphere so informal in the senate?
a. the belief that senators need to be able to express themselves without constraints
c. senators are held in a higher regard and therefore should have less rules.
b. senators do not follow rules.
d. belief that rules slow down the effectiveness

The correct answer is letter A. The belief that Senators need to be able to express themselves without constraints. The atmosphere in the Senate is so informal because is the belief that Senators need to be able to express themselves without constraints. Without constraints, there'll be more arguments to talk about.

The reason why the atmosphere is so informal in the Senate is because the belief that Senators should be able to express themselves without constraints - a.

This is highly connected with the right of free speech. Being able to express one freely is highly intertwined with each other. 

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