Select the correct answer from each drop-down menu. how are evidence and counter examples used in proofs?

in a direct proof, evidence is used to __. on the other hand, a counter example is a single example that __.

1) support each statement
1a) contradict the last statement
1b) contradict the given information
1c) support the last statement

2)proves a proposition
2a) disproves given information
2b) proves the given information
2c) disproves a proposition

PLEASE HELP.