Final answer:
In the market research process, the identification of trends from focus group responses is conducted in the Data Analysis phase.
Step-by-step explanation:
In the market research process, the step that involves identifying trends in the responses from a focus group is Data Analysis (B). During this phase, researchers examine the data collected to uncover patterns, trends, and insights that can inform decision-making. Data collection is gathering information, while data analysis is about making sense of that information. The other options, such as Survey Design and Sampling, pertain to earlier stages in the research process where the methods and participants are decided upon, respectively.