Answer:d
Explanation:just gueessed
If you are talking about arks for construction, the answer would be "The point or line at which an arch or vault begins to curve".
Answer:
as well as more about interjections and how to use them in this article. An interjection is one of the eight major parts of speech, along with verbs, nouns, They express meaning or feeling in a word or two. They're usually, but not always, offset by an exclamation point (which is also used to Beginning of Sentences.
Beethoven was one of the last pupils of Hayden.
Hope this helps!