Final answer:
The correct preterite stem-changing verb in the sentence is 'siguió.' Stem-changing verbs experience a vowel change in the stem during conjugation.
Explanation:
Patricio siguió en el avión durante la escala.
In this sentence, the stem-changing verb in the preterite tense is siguió (followed).
Stem-changing verbs undergo a change in the vowel of the stem when conjugated in certain tenses.
Learn more about Stem-changing verbs in Spanish here:
https://brainly.com/question/29794424
