Boupha accesses her company's before she calls on customers. Of course, she can see their names and past purchases, but Boupha can also read any notes that were put into the system about customer preferences, concerns, or problems.

a$.$ marketing dashboard

b$.$ marketing information system $($MIS$)$

c$.$ decision support system $($DSS$)$

d$.$ customer relationship management $($CRM$)$ system