Answer: a. a company that analyzes consumer credit histories.
Explanation: The Fair Isaac Corporation (FICO) founded in 1956 by Bill Fair and Earl Isaac is a data analytics company and also the first company to offer a credit-risk model with a score. In other words, the FICO model is the primary method used for determining an individual's creditworthiness and in the provision of a credit rating or score.
They also offer credit scores for sales, either alone or as part of a package of products.