Aweek before the election, 1,500 people were asked who they planned to vote for. 45% said they planned to vote for candidate x. 38% said they planned to vote for candidate y. the rest said they had not decided yet. how many of the people who were asked have not yet decided for whom they plan to vote?

a. 150 people
b. 255 people
c. 570 people
d. 675 people