【求助】两道逻辑题~~Thanks

fiona128876

1.
Commissioner: Budget forecasters project a revenue shortfall of a billion dollars in the coming fiscal year. Since there is no feasible way to increase the available funds, our only choice is to decrease expenditures. The plan before you outlines feasible cuts that would yield savings of a billion dollars over the coming fiscal year. We will be able to solve the problem we face, therefore, only if we adopt this plan.
This reasoning in the commissioner's argument is flawed because this argument:
A relies on information that is far from certain
B confuses being an adequate solution with being a required solution
C inappropriately relies on the opinion of experts
D inappropriately employs language that is vague
E takes for granted that there is no way to increase available funds
2.
Learning how to build a nest plays an important part in the breeding success of birds. For example, Dr. Snow has recorded the success of a number of blackbirds in several successive years. He finds that birds nesting for the first time are less successful in breeding than are older birds, and also less successful than they themselves are a year later. This cannot be a mere matter of size and strength, since blackbirds, like the great majority of birds, are fully grown when they leave the nest. It is difficult to avoid the conclusion that they benefit by their nesting experience.
Which one of the following, if true, would most weaken the argument?
A Blackbirds build better nests than other birds.
B The capacity of blackbirds to lay viable eggs increase with each successive trial during the first few years of reproduction
C The breeding success of birds nesting for the second time is greater than that of birds nesting for the first time
D Smaller and weaderblackbirds breed just as successfully as bigger and stronger blackbirds
E Up to 25percent of all birds are killed by predators before they start to nest