work healthcare plan

You want to know whether Americans generally support or oppose the new health care plan. Which of the following approaches is most likely to give you an accurate result? why

A- Short interviews with 1000 randomly selected Americans, conducted by a professional polling organization such as Gallup or the Pew Research Center

B- In-depth interviews with 10,000 Americans selected at random from among those who have been hospitalized in the past year, conducted by a professional polling organization

C- Short interviews with 100,000 Americans, chosen by asking 100 randomly selected people at each of 1,000 grocery stores at 9 a.m. on a particular Monday morning, conducted by volunteers working for a citizens' group

D- A poll in which more than 2 million people register their opinions online, conducted by a television news channel

E - A special election held nationwide, in which all registered voters have an opportunity to answer a question about their opinion on the health care plan