Step 1: Recall Egyptian architecture.
Egyptians used the post and lintel system in constructing temples and pyramids.
They followed strict geometrical proportions in art and architecture.
Art also represented daily life activities like farming, hunting, and religious rituals.
Open-air theatre, however, belongs to Greek civilization, not Egyptian.
Step 2: Eliminate incorrect option.
Since open-air theatre is Greek, (D) is not correct for Egypt.
Step 3: Verify correct features.
Thus, (A), (B), and (C) are correct.
Step 4: Conclusion.
Correct answer is (B) A, B and C only.