Answer:
The answer is E) Attempts to undermine all or some of the premises upon which Jim justifies his proposal.
Step-by-step explanation:
She attempts to undermine his premises by stating how unresanoble his suggestion is. She does not make assumptions, she does not imply anything about Jim needing Congressional approval, sh does not provide reasons why this proposal would be difficult nor does she assume that the congress would never approve a policy which has small public support.