Final answer:
A distracted pedestrian could be indicated by someone looking down at a cell phone, as it shows they are not paying full attention to their environment.
Step-by-step explanation:
The scenario that could indicate a distracted pedestrian is: b) Someone looking down while reading a text on a cell phone. This is a common form of distraction as it takes the pedestrian’s eyes and attention away from their surrounding environment, potentially leading to unsafe situations. When discussing pedestrian safety, it's crucial to consider behaviors that reduce a pedestrian’s awareness of traffic and their surroundings. Unlike the options of someone looking straight ahead or someone looking both ways before entering a crosswalk, which represent attentive behaviors, looking down at a phone is generally a sign of inattention.