None of the options given directly describes how social media influences businesses. However, one way social media can influence businesses is by providing a platform for businesses to reach and engage with their customers, build brand awareness, and increase sales. Social media can also be used for marketing research and to monitor customer feedback, helping businesses make data-driven decisions and improve their offerings. Therefore, none of the options given accurately describes how social media influences businesses. So, if there isn't none of above, the most likely correct option is the first one, "by helping people find job opportunities."