Read the sentence. Ayer compre el jabon. Which of the following sentences correctly uses the direct object pronoun to substitute the direct object? A. Ayer la compre B. Ayer las compre C. Ayer lo compre D. Ayer los compre
The correct answer is C. The direct object pronoun must agree in gender and number with the noun that it's replacing. El jabón is singular and masculine, so the pronoun corresponding to it must also be singular and masculine: lo.