In this case, "each group member" is the appropriate choice to maintain a consistent singular reference, as "the students" refers to all members of the class. "Each group member" indicates the singular responsibility of outlining their roles, following the conventions of Standard English.

In this case, "he or she" is the appropriate pronoun-antecedent agreement because "each artist" refers to a singular form. Using "he or she" maintains a consistent singular reference and aligns with the conventions of Standard English.

In this case, "each student" is the appropriate choice to maintain a consistent singular reference, as "everybody" refers to all individuals in the singular form. "Each student" indicates the singular responsibility of each individual, which follows the conventions of Standard English.

The correct choice for pronoun-antecedent agreement is "everyone," as it refers to both the teacher and the students who are involved in the situation. Using "everyone" maintains consistent singular reference and aligns with the conventions of Standard English.

Here, the correct choice of pronoun-antecedent agreement is "his or her" because "each musician" is a singular reference. The pronoun "his or her" indicates that the musicians can be either male or female and maintains a consistent singular reference, which follows the conventions of Standard English.