Read the incomplete sentence. choose the option with the correct word or phrase that completes the sentence. dormir is an example of a e → ie stem-changing verb e → i stem-changing verb o → ue stem-changing verb u→ ue stem-changing verb

o → ue stem-changing verb

Explanation:

1) In some times and person, change the O for the "EU"  form

2) In some times and person, change the O to U

3) In the present subjunctive, they stand out in another color  irregularly shaped forms other than the rest of the time.

In Simple Present (indicative mode)

yo duermo

tú duermes

él/ella/usted duerme

nosotros/as dormimos

ellos/as/ustedes duermen

The correct option to complete the sentence is:

"Dormir" as a stem-changing verb.

The so-called "stem-changing verbs" are those that change a vowel depending on the verb tense used. In present tense, the verb "dormir" undergoes a change where its first vowel "o", in the conjugated forms, becomes "ue" as shown below with most personal pronouns:

If you want to know more about the stem-changing verbs, you cn visit the next link: link

b.

explanation:

just because.

well, the b sentence is the only one that has sense.