TOEFL Listening: TPO-TOEFL听力TPO - NMY8XW2I32PY0R42R$

Why does the professor mention an Egyptian pyramid? A. To contrast its purpose with that of monuments found in the British Isles B. To compare the architectural styles of two Neolithic cultures C. To describe the outer shape of passage graves in Great Britain and Ireland D. To help students understand how long ago passage graves were built