The "TSSL" in the Multilayer Model of HCI Stands For

Multiple Choice

The "TSSL" in the multilayer Model of HCI stands for:

A) tools, system, social context and language involved in human-computer interaction
B) task, system, services and language involved in human-computer interaction
C) tool, system, services and logical level of user activity
D) task, semantic, syntactic, and lexical levels of user activity
E) traditional, systematic, social and linguistic context of human-computer interaction