Dimitri plans to give a speech to his classmates about the principles of physics behind the design of hybrid automobiles. the most important factor for dimitri to consider when analyzing his audience is probably itsa. age.
b. group membership.
c. attitude toward the speaker.
d. knowledge about the topic.
e. size.

D. Knowledge about the topic.

Explanation:

Audience analysis is one of the crucial elements to consider which includes several elements like the audience's expectations, knowledge, and attitude towards the topic, audience size, demographics, etc. Yet the most significant factor for Dimitri to consider would be the "knowledge about the topic" as the speaker is required to have a fair idea of what the listeners already know. The speaker should never under/overestimate the speaker's intellect as it may mislead them and consequently, the audience may lose interest or misinterpret the speaker's intellectual ability. Thus, this is of utmost concern as if the speaker has sound expertise on the topic, the size, age membership, attitude towards the speaker would not matter that much as their intellect and wisdom would eventually convince them to believe and applaud the speaker.

the author motivation is to show the power of animal-human relationships.

the answer is culture