Final answer:
The correct answer is C. quiero. The sentence translates to "I want to travel to Spain someday."
Step-by-step explanation:
The correct answer to fill in the blank in the sentence "Yo_____________ viajar a España algún día." is C. quiero. The sentence translates to "I want to travel to Spain someday." In this case, we use the present tense of the verb querer (to want) to express a desire or intention. The subject pronoun "Yo" (I) is followed by the verb form "quiero" (I want).
Learn more about Spanish