The correct preterite "yo" form of the verb "poder" is "c. pude."
Explanation:
1. The verb "poder" means "to be able to" or "can" in English.
2. In the preterite tense, which is used to talk about completed actions in the past, the "yo" form of "poder" is "pude." This form indicates that the action of being able to do something was completed in the past by the speaker.
3. The other options provided are not correct for the "yo" form in the preterite tense:
- "podí" is not a valid form of the verb "poder" in the preterite tense.
- "puedo" is the present tense form of "poder" for "I can" or "I am able to."
- "podiste" is the preterite "tú" form of the verb "poder," meaning "you were able to."
Therefore, the correct answer is "c. pude" for the preterite "yo" form of the verb "poder."
