The answer is 'colluded', because it means that they schemed to do it secretly. The other options aren't possible here, and most of them are adjectives, and you need a verb.
Answer:
educations gives us the way to the successful
The <u>supplier</u> (noun) <u>accidentally</u>(Adv.) <u>delivered</u> (verb) the <u>wrong</u>(Adj.) <u>material</u>(noun).
Here,
- <u>accidentally</u> is the adverb
- <u>supplier, material</u> are the nouns
- <u>wrong </u>is the adjective
- <u>delieverd</u> is the verb
- <u>supplier</u> is the direct object
- <u>material</u> is the indirect object
- <u>supplier </u>is the subject
To learn more about subject and verb, adjectives , articles , adverbs, direct objects , and indirect objects
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