two upright vertical posts supported by a horizontal element describes which method of construction?\na…

two upright vertical posts supported by a horizontal element describes which method of construction?\na. post - and - lintel\nb. corbel\nc. cairn
Answer
Brief Explanations:
The post - and - lintel construction consists of two upright vertical posts (posts) with a horizontal element (lintel) placed across the top of them. A corbel is a different type of construction where stones or bricks are successively projected outwards. A cairn is a pile of stones.
Answer:
A. post and lintel