A sixth-grade social studies teacher is concerned about whether or not the students are progressing satisfactorily through the current lesson on the locations of ancient river civilizations. When asking questions during a formative assessment, the teacher finds that most of the students do not know the answers.What would be an appropriate instructional decision based on the assessment results?

a.)Reteach the same lesson
b.)Proceed to the next lesson
c.)Reteach the objective using another activity
d.)Administer the same assessment the following day