Which of the following best characterizes something that is described as "striated"?

The term "striated" refers to something that is marked with narrow grooves or stripes. This word is often used in various contexts, such as in geology to describe rocks that have been etched with lines by glacial movements or in biology to describe muscle tissue that has a banded appearance due to the arrangement of fibers. The presence of these narrow, parallel lines gives a specific texture and visual quality to the object in question. Therefore, the best characterization of something described as "striated" is indeed marked with narrow grooves.