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.

Each candidate is the appropriate choice of pronoun-antecedent agreement to maintain consistency in singular reference, as "each" refers to the individual candidates involved. "Each candidate" indicates the singular responsibility of speaking before the final decision, which follows 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.

Here, the correct choice of pronoun-antecedent agreement is "it" because the singular reference "the comity" must be maintained. "it" keeps the consistency in the singular form and follows the conventions of Standard English.

In this case, "he" is the appropriate pronoun-antecedent agreement because Juan is a singular noun referring to a specific person. Using "he" maintains a consistent singular reference and aligns with the conventions of Standard English.