Retrieve the s&s in-chapter database

Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text’s Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer the following questions. Note: For some questions, you may have to create two queries–one to calculate an invoice total and the second to answer the questions asked. ***I attached the S&S Database info

a. How many different kinds of inventory items does S&S sell?