Take a look at this dictionary entry.

contest con • test (n.) kon-test [from anglo-french or latin] 1.
a competition between rivals for a prize 2.
a struggle for victory 3.
a dispute; controversy

(v.) kuhn-test
4. to fight for in a battle
5. to call into question

according to the dictionary entry, which definition of the word "contest” is used in this sentence?

during the school meeting, our class vice president contested the decision that the pep rally would be canceled due to the rain.

definition 1 definition 2 definition 4 definition 5