Answer:
a. the student or the one who developed the idea for the study
Step-by-step explanation:
According to the American Psychological Association, when a graduate student submits his or her thesis or dissertation for publication jointly with the major professor, the first author should be the student or the one who developed the idea for the study.
In psychology, authorship is expected individual who conduct the study and under a student-supervisor scenario,it should be given to the student or the one who developed the idea for the study if only the conduct of the research is carry out under the guardian of a major professor who presumably might be the one to edited the thesis or dissertation, the major professor should be co author with the student or the one who developed the idea for the study to whom he guided or presumably jointly worked with,The major professor guide gives proper shape to the thesis or dissertation for publication
The person who put the most work into the paper will have their name first which is usually the student or the one who developed the idea for the study to prevent an academic case of ethic plagiarism. The usual solution to this is co-author