In a Study About Help to Quit Smoking,one Group of Participants

In a study about help to quit smoking,one group of participants received a single supportive phone call 10 days after attending a program on strategies to resist the urge to smoke.A second group received a weekly supportive phone call for 6 weeks after attending the same program,and a third group received no supportive phone calls after attending the program.What is the dependent variable in the research scenario?

A) Program on strategies to resist smoking
B) Elimination of cigarette smoking
C) Weekly supportive phone call
D) No supportive phone call

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