The assertion (A) is valid because footloose industries can be situated in diverse locations, particularly where transportation and infrastructure offer flexibility, and where proximity to markets or raw materials is not a critical factor.
The reason (R) is also accurate, as the positioning of footloose industries is indeed shaped by the accessibility of transport networks. An effective transport system enables these industries to establish themselves in various regions, as they are not dependent on specific raw material sources.
Consequently, (R) accurately clarifies (A).