Phoebe has supported candidates of different parties in different election years, and she is not bound by party identification. as such, phoebe would be characterized as a .a. tipper. b. swing voter. c. pragmatist. d. valence voter.

The correct option is B) swing voter

Explanation:

A swing voter is also known as a floating voter. A swing voter can be described as a voter who is not affiliated with any particular political party. Such kind of voter votes across party lines. Hence, option B is correct.

Other options, like option D,  is not correct because valence voting can be described as a type of voting where people tend to vote for a common preference.