Which grammatical rule would the medical assistant use when pluralizing the word "cortex"?

A. Drop the -ex and replace it with -es.
B. Drop the -ex and replace it with -ies.
C. Drop the -ex and replace it with -ges.
D. Drop the -ex and replace it with -ices.



Answer :

Final answer:

When pluralizing the word cortex, drop the -ex and replace it with -ices.


Explanation:

The grammatical rule the medical assistant would use when pluralizing the word cortex is to drop the -ex and replace it with -ices. This follows the general rule of pluralizing nouns by adding -es when a word ends with s, x, z, sh, or ch. Examples of other words following this rule include boxes, dishes, and churches.


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