The only ornamentation on american shaker furniture was provided by

It would be provided by the natural grain of the wood.

I guess these were the choices:
a. inlays. 
b. the natural grain of the wood. 
c. delicate carvings. 
d. turned arms and legs.

Shaker furniture was made of cherry, maple or pine lumber. Drawer pulls for dressers or other furniture were enhanced by the beauty of natural wood and their special finishing.

Net  the suffix is your .com/.net/.org, and so on, i believe

Yes and no because if you know the vocabulary used you will understand it and go faster but you might not need it