Which one would be the best answer?

How is the introduction of the cane toad to queensland, australia an example of the unintended consequences of using non-native species to control pests? (site 1)

Which of the following would be paid for with a state’s capital budget? a) lawmakers’ salaries b) a new bridge c) the salaries of state troopers d) education

Some studies have found that what percentage of students have cheated in some form? a. 10% b. 25% c. 45% d. 75%