The correct answer for above statement is:
A) constructed giant stone monuments.
Explanation:
The Olmec were the first important civilization in Mexico. They existed in the tropical marshes on the Gulf of Mexico in the present-day Mexican states of Veracruz and Tabasco. The name Olmec is a Nahuatl the Aztec language word,it means the rubber people. The Olmec people created giant stone monuments. developed a writing.