If you wanted to add rustic texture to your interior design, you could add:

a
a soccer themed beanbag chair
b
black and white tile flooring
c
a fur throw blanket
d
wallpaper in a geometric pattern

Hi, so a rustic texture is : a design that is mostly natural and casual. It basically emphasizes the natural!
Some examples of natural materials are different unfinished woods and stones. These can be used for fabrics, walls.
Therefore I believe

a: a soccer themed beanbag can be eliminated

b: black and white tile flooring doesn't seem to fit in the natural colour pallet you'd find in a rustic home.

c: a fur throw blanket. I believe this has a possibility of being the correct answer because rustic textures are also furs and other fabrics.

Or

d. wallpaper in a geometric pattern. This can also be the answer because this wallpaper fits both in a rustic style home and modern.

I think either c or d will be your best answer.
I'm not 100% sure about this but I hope I was able to help you with your question.

You'd have to give me options to choose from before i can answer you.