which make sense?

1. how can you expect to succeed at your new job when you are( diffused, predisposed) to believe that it is " not right" for you?

2. an economy in which the marketplace is considered "open" is one in which competition is more or less (muddled, unbridled).

3.my mother broke the (debris, deadlock)in the quarrel between my brother and me by saying that neither of us could use the car.

4. thus, the nation was faced with a ( dilemma, brigand) in which either to advance or to retreat might and endanger its vital interests.

5. the senator refused to (efface, relinquish) the floor to any other speaker before he had finished his statement.

2 answers

Please look up all the words you are even a little unsure of -- http://www.dictionary.com or http://www.answers.com

Then let us know what you think for each of these five.
diffused opinionated commandeer muddled breached