American Express Is an International Financial Services Company That Provides

American Express is an international financial services company that provides credit cards that are typically associated with individuals who travel on business and utilize their cards for purchases at restaurants, travel services (e.g., transportation, hotel) , or other purchases. American Express makes extensive use of purchase information to aid in management and marketing decisions as well as in their marketing efforts to enhance the number of businesses that accept payment by the American Express Card. American Express leverages their information about consumers by analyzing the charging history of credit card members, website traffic, and information gleaned through the use of "cookies" and monitoring of social media, such as Twitter, Facebook, Instagram, and Pinterest. American Express believes data provides significant insights for their company. What type of information does American Express utilize?

A) Big data
B) Single-source data
C) Marketing decision support system
D) Experimental data