Which fact provides clear evidence that the Maya were influenced by the Olmec?

Maya-Olmec trade routes have been discovered.

The two peoples lived in the same region.

The Maya played an Olmec-style ball game.

Both cultures used local basalt rock for sculptures.

Question

Which fact provides clear evidence that the Maya were influenced by the Olmec? 
 
Maya-Olmec trade routes have been discovered.
 
The two peoples lived in the same region.
 
The Maya played an Olmec-style ball game.
 
Both cultures used local basalt rock for sculptures.

anonymous · Answer

D) Both cultures used local basalt rock for sculptures

anonymous · Answer

not c

anonymous · Answer

Okay I going back to the books.  I willl get back with you. Thank you

anonymous · Answer

It is D) Cnappy, why do you keep saying that?

anonymous · Answer

Sorry about that.  I am trying to learn this stuff so I ask questions and then re-read.

anonymous · Answer

Ah, that's okay (:

timaashorty · Answer

The correct answer is D. Kfins is right, I also researched to double check (: