What causes the "whispering and murmurs" Mead hears while walking the streets in "The Pedestrian"?

In the short story "The Pedestrian" by Ray Bradbury, the "whispering and murmurs" that Mead hears while walking the streets are caused by voices from television programs. The story is set in a dystopian future where people have become isolated and disconnected from one another. Instead of engaging in social interactions, they spend their time indoors, watching television. As Mead walks alone at night, he becomes an anomaly, as no one else is seen outside. The "whispering and murmurs" he hears are the sounds emanating from the televisions in the houses he passes by. These voices represent the only form of human connection and communication in this society. They serve as a reminder of the absence of real human interaction and the artificiality of the world Mead lives in. Therefore, the correct answer is A. Voices from television programs.