Pick the odd one out and give reason.
Collateral, Interest rate, Documentation, Loan amount.

documentation

Explanation:

In simple words, documentation refers to the process under which an individual has to prepare and submit the relevant documents asked by the authority for the completion of his or her objective, which could be anything, like taking bail out of jail, starting a restaurant etc.

Therefore, we can conclude that the odd one out is documentation as the other three terms relates to loan only but documentation has a wider domain in use.

answer; ///i believe that the correct answer is because the house and senate frequently pass different versions of the same bill;