The correct answer is any substance or environmental factor other than a steroid
The independent variable is the factor or behavior that is manipulated by the experimenter in order to observe the effect of that manipulation on another factor or behavior that is the dependent variable. To you It is also called the experimental or active variable.
I believe the answer is: volunteer, communications, and fund-raiser
The volunteer would played roles as the front people during the campagin. Their jobs would be revolved around increasing the popularity of the candidates through things such as making posters or handing out pins.
Communications people would handle media related campaign and fund raiser would be the one that help the candidate collecting the money to be used for the campaign.
A) Catholic immigrants caused the country's problems
