Match the following E-commerce generations with their descriptions:
a. First A. Increasing integration with external partners on the Web including allowing transactions between web applications.
b. Second B. Growth in businesses' ability to support transactions on the Web.
c. Third C. Static content such as company information, online marketing, and company brochures.
d. Fourth D. Dynamic content where Web page changes depending on a number of factors such as time and date, user profile, or browser location