Carlos would like to research how redditors feel about his running shoe brand. Which of the following are ways for brands to perform research on Reddit? (Select all that apply)

To research redditor sentiment, Carlos should review related communities (subreddits) where discussions about running shoes, fitness, or his brand might occur. This provides direct insight into user opinions, preferences, and pain points. Browsing post mentions, which involves searching for his brand's name or relevant keywords across Reddit, helps identify organic conversations and unsolicited feedback. Posting affiliate links on r/marketing is incorrect because it's a promotional tactic, not a research method, and would likely violate subreddit rules against spam or self-promotion, leading to negative community reactions rather than useful data.