A layout optimization that changes user perception of the report but not the semantic rule being tested

Value, Trend axis, and Target goals

X-axis, Y-axis, and Legend, although plausible for report design, it describes chart presentation choices and not the specific feature semantics asked here.

Rows, Columns, and Values, however, this interpretation reflects visual formatting behavior rather than the analytical intent evaluated by the question.

Category, Series, and Size, although plausible for report design, it describes chart presentation choices and not the specific feature semantics asked here.