Final answer:
The law of spatial interaction(option A) in Tobler's First Law of Geography is related to time-space convergence, which describes how improved transportation and communication make locations seem closer by reducing travel time.
Step-by-step explanation:
The aspect of Tobler's First Law of Geography that is closely related to the notion of time-space convergence is the law of spatial interaction. Time-space convergence refers to the decrease in travel time and the corresponding increase in connectivity or interaction between spaces that results from technological innovations in transportation and communication. As a result, the distances between places seem to 'shrink' due to improved efficiency, which embodies the principle that 'near things are more related than distant things'. Tobler's law suggests that spatial interaction is governed by the friction of distance, meaning that as the friction reduces, due to time-space convergence, interactions increase.