Choose the correct order of words to form a grammatically correct sentence: "On the beach, the, children, building, sandcastle, happily, were."

Варианты ответа

1. A.On the beach happily were the children building sandcastle.
2. B.The children were happily building sandcastle on the beach.
3. C.The children were happily building sandcastle on the beach.
4. D.On the beach the children were building happily sandcastle.
5. E.The children were happily building a sandcastle on the beach.верно