Solution:Harold Lasswell's model of communication is a linear model proposed in 1948, often summarized by the phrase: "Who says what to whom through which channel with what effect?" Thus, the correct sequence is:D. Who - the communicator or sender
B. What the message or content being communicated
E. Whom - the receiver or audience
C. What channel - the medium used for communication (e.g., speech, writing, radio)
A. What effect - the outcome or impact of the communication (e.g., persuasion, behavior change)
This model is still foundational in media studies and communication theory.