which answer best describes the sample from the following research study? Select the best answer. A researcher wants to examine the role of gender bias in hiring decisions. To do this, the researcher sent r$$sum$$s to $50$ different companies in the Dallas$/$Ft$.$ Worth area who were hiring. The r$$sum$$s were identical except that one$-$half of the r$$sum$$s used the name Jill Gatsby and the other half used the name Bill Gatsby. The researcher recorded the number of interviews "Jill" and "Bill" were offered.

$50$ companies in the Dallas$/$Ft$.$ Worth area

All companies in the Dallas$/$Ft$.$ Worth area who are hiring

All companies who are hiring