How would you rewrite the following sentence using an object pronoun?

él compra los libros.

él los compra.

él las compra.

él lo compra.

él la compra.

When describing nouns in english, the noun being described comes second. what is the proper format in spanish? the noun being described comes first followed by the describing noun. the describing noun comes first followed by de (of) and the noun being described. the noun being described comes first and is followed by de (of) and the describing noun. the describing noun comes first followed by the noun being described.