Cyber Alert, Inc., a worldwide media monitoring company, has launched BlogSquirrel, a new service that enables businesses to monitor efficiently the contents of over 100,000 blogs. Subscribers to the blog tracking service automatically receive daily (or more frequent) e-mail alerts on new blog postings that contain the client's specified keywords and phrases. Why would a marketer purchase such a service? Select one: O a to combat disintermediation b. to monitor consumers' opinions about their products c. as a source of more research opportunities Od to supplement dichotomous research efforts o to measure the size of target markets