5. The tblBooks table in the Books database contains a numeric field named Price. Which of the following determines the number of books whose price is at least $20? The dataset’s name is BooksDataSet.

a. Dim intNum As Integer =

Aggregate book In BooksDataSet.tblBooks Where book.Price > 20 Into Count

b. Dim intNum As Integer =

Aggregate book In BooksDataSet.tblBooks Where book.Price >= 20 Into Sum

c. Dim intNum As Integer = Aggregate book In BooksDataSet.tblBooks Where book.Price >= 20 Select book

d. Dim intNum As Integer = Aggregate book In BooksDataSet.tblBooks Where book.Price >= 20 Into Count