Here are the answers to your questions based on the descriptions provided:
Question 1: The situation describing Kayla's aunt's confusion about technology relates to: Option C: Knowledge Gap.
Question 2: The definition provided corresponds to: Option A: Evolutionary Model of Technological Change.
Question 3: An Oligopoly is defined as: Option D: a situation in which a few firms dominate a marketplace.
Question 4: Gatekeeping is defined as: Option D: the sorting process by which thousands of possible messages are shaped into a mass media-appropriate form and reduced to a manageable amount.
Let me know if you need further assistance!