Which of these is true about the Olmec writing system? A. It used characters similar to those used by the Inca.

B. It used a system of hieroglyphic symbols.

C. It is the oldest writing system in the world.

D. It has been found mostly in scrolls and books.

B

Explanation:

Brainliest please

B.

Explanation:

Olmec is a syllabic writing system used in the Olmec heartland from 900 BC- AD 450. ... The Olmec script is a logosyllabic script. The Olmec had both a syllabic and hieroglyphic script. The hieroglyphic signs were simply Olmec syllabic signs used to make pictures..

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering