Option 1 -> The grandfather fed the stray dogs and knew their names, showing care but not camaraderie.
Option 2 -> The passage explicitly states the grandfather "exchanged pleasantries with them, displaying a warm camaraderie" with other walkers at the tea shop.
Option 3 -> Birds were mentioned as chirping melodiously, but no interaction or camaraderie was described.
Option 4 -> Sweepers were cleaning streets, but no camaraderie or interaction with the grandfather was mentioned.
Hence, Option 2: morning walkers at a tea shop -> The passage clearly mentions that the grandfather exchanged pleasantries with other walkers gathered at the tea shop, displaying warm camaraderie, indicating friendly social interaction between morning walkers -> correct