Hoping to learn what issues may resonate with voters in the coming election, the campaign director for a gubernatorialgubernatorial candidate randomly selects twotwo blocks from each of the statestate's election districts. Staff members go there and interview all the residents they can find. The residents were asked to select the threethree most important issues from a prepared list. What is the sampling frame? A. All statestate residents B. All voters in the statestate C. The most important issues to voters D. The gubernatorialgubernatorial candidate