At the end of the lecture on "Buildings and Land," we compared two buildings by Frank Lloyd Wright. At the end of the lecture on "Structure and Materials," we compared two buildings by Eero Saarinen. What was the point of the two comparisons?

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve