Select the correct answer.
Residents of four cities are able to vote in an upcoming regional election. A newspaper recently conducted a survey to gauge support for each of the two candidates. The results of the poll are shown in the two-way frequency table below.

Candidate A Candidate B Total
Center City 152 198 350
Carsonville 205 266 471
Appleton 260 203 463
New Thomas 180 138 318
Total 797 805 1,602

Based on the data shown, which of the following statements are true?

I. The two cities with the highest number of respondents both show more support for candidate A.
II. The number of people who support candidate B in Carsonville is twice the number of people who support candidate B in New Thomas.
III. More residents of Center City responded to the poll than the number who responded from New Thomas.
IV. Overall, more residents support candidate A than candidate B.