Final answer:
The S.O.L. period refers to the Standards of Learning period in Virginia, where students take state-mandated assessments. It typically starts at the end of the school year.
Step-by-step explanation:
The S.O.L. period refers to the Standards of Learning period in the state of Virginia, USA. These are state-mandated assessments that measure student proficiency in various subjects. The S.O.L. period typically starts at the end of the school year, ranging from late April to early June. During this time, students take S.O.L. tests to assess their understanding of the material covered throughout the school year.