Which of the following plural words is spelled incorrectly? a. formulae b. axes c. media d. elfs

the correct anwer is option D) elfs

Explanation:

There are several rules for plural forms depending on their endings.

In the examples provided, the one that is spelled incorrectly is "elfs" since the correct spelling for it is "elves".

The spelling rule that applies in this case is that those nouns that end in "f" chage its plural form to "ve". It does not apply to all nouns, but it does in this case. Other example that follow this rule is: "shelf" "shelves",

explanation:

it refers to the definition of full-contact sports, where the condition is that the sport must have athletes must "purposely collide with each other