____ are keywords you associate with a picture file to aid in its classification.

A) Icons
B) Tags
C) Strokes
D) Indices

Tags are commonly used to add descriptive keywords to image files for easy classification and searchability. Icons are small graphical symbols that represent an object or concept. Strokes refer to the lines or brushstrokes used in a drawing or painting. Indices are typically used in database systems to allow for faster searching and retrieval of information.