Option 1 -> Facilities refer to infrastructure, services, and resources designed to help people - fits perfectly with the context of physical accessibility and urban concentration.
Option 2 -> Hospitality means welcoming guests - doesn't make logical sense when discussing what "concentrates around major cities" for the physically challenged.
Option 3 -> Envy is a negative emotion - completely irrelevant and grammatically inappropriate in this context.
Option 4 -> Faculties means inherent abilities or university departments - doesn't fit the context of services/resources for the physically challenged.
Hence, Option 1: Facilities -> Major cities typically have better infrastructure, specialized medical centers, accessible public transport, rehabilitation centers, and support services for people with physical disabilities, which is why these facilities concentrate in urban areas -> correct