What does red, yellow, and green light mean?

• A. red - not started; yellow - in progress; green - complete
• B. red - complete; yellow - not started; green - in progress
• C. red - in progress; yellow - complete; green - not started
• D. red - not started; yellow - complete; green - in progress

Answer: (D)

Color-coded status signals tell you where a task stands in its lifecycle. In this material, red means not started, yellow means complete, and green means in progress. This specific mapping is the one used here, so it aligns with the given answer. Red indicating not started makes sense as the initial state with no work done; green indicating in progress shows active work underway; yellow indicating complete marks the finished state. The other mappings describe different conventions and wouldn't fit the answer in this context.