Ayer compré el jabón.
Which of the following sentences correctly uses the direct object pronoun to substitute the direct object?
• Ayer la compré.
• Ayer las compré.
• Ayer lo compré.
• Ayer los compré.
The correct answer is: "Ayer lo compré."
To determine the correct use of the direct object pronoun, we need to identify the gender and number of the direct object in the original sentence "Ayer compré el jabón."
In this case, the direct object "el jabón" is masculine and singular. In Spanish, the direct object pronoun for a masculine, singular direct object is "lo."
Therefore, the correct sentence using the direct object pronoun to substitute the direct object would be "Ayer lo compré."