Which contribution did the Mesopotamians make to the evolution of writing?

A) They created the Phoenician alphabet, which used pictures to represent individual sounds.
B) They developed a system of script known as cuneiform, which involved making marks on clay tablets.
C) They developed a system of hieroglyphics, which used pictures to represent objects, ideas, and sounds.
D) They created cave paintings, which led to the development of a system of symbols that represented words.

B) They developed a system of script known as cuneiform, which involved making marks on clay tablets.