Which sentence uses a noun clause as a direct object?

ʜᴇʏᴀᴀ!! ɪ'ᴍ ᴘɪɴᴋʏ ᴀɴᴅ ɪ'ᴍ ʜᴇʀᴇ ᴛᴏ ɪɴꜰᴏʀᴍ ʏᴏᴜ ᴛʜᴀᴛ ʏᴏᴜ'ʀᴇ ᴀɴꜱᴡᴇʀ ɪꜱ...♡

Explanation:

Rob explained what he liked on his sandwiches to the chef. This is the sentence that uses a noun clause as a direct object. See the underlined structure and the explanation below:

explain(ed) is the main verb and it is transitive; it needs a direct object .

what he liked on his sandwiches is the noun clause. It can be replaced by a noun phrase: this fact - Rob explained this fact to the chef.- ; and what he liked on his sandwiches is a clause because it has a subject and a predicate: he (subject) + liked on his sandwiches ( what -placed at the beginning) (predicate).

the nation will get back everything that was lost

hope this

noun phrase/ noun phrase/ verb phrase/ noun clause/ awnsers are in order to questions above