Question

she reviewed how to find the area of shapes today.
she, shapes, during class
my math teacher, polygons, during class
she, polygons, today

Explanation:

The original sentence has "She" as the subject, and it mentions reviewing the area of "shapes" on "today". Shapes can include polygons. The most accurate option should match the subject, the object - related concept, and the time.

Answer:

She, polygons, today