Please check my answer tahnks :)

Choose the plural noun that is spelled correctly.

Phenomenons pianoes

Father-in-laws Editors in cheif

I picked Phenomenons

Then what is the word "phenomena" ?

Bob Pursley is right. The answer is non "phenomenons" (phenomenon=s.; phenomena=pl.)

Which other one did you decide on?

??

If you had spelled chief correctly, the last word combination would be the only correct plural. As written, there is something wrong with all of them.

Thanks :)

To check if your answer is correct, we need to determine the correct plural form of the nouns given.

1. "Phenomenons" - The correct plural form of "phenomenon" is "phenomena." So, "Phenomenons" is incorrect.

2. "Pianoes" - The correct plural form of "piano" is "pianos." Therefore, "Pianoes" is incorrect.

3. "Father-in-laws" - The correct plural form of "father-in-law" is "fathers-in-law." Here, "Father-in-laws" is incorrect.

4. "Editors in cheif" - The correct plural form of "editor in chief" is "editors in chief." So, "Editors in cheif" is incorrect.

Based on the correct plural forms mentioned above, none of the options provided is spelled correctly. Therefore, your answer of "Phenomenons" is incorrect.