As a result of changing sales figures, a company increased the size of its workforce very quickly at first and then more slowly, as shown in the table. Years After Opening 1 2 3 4 5 6 7 Number of Employees 100 348 405 575 654 704 746 Which type of function best models the data? A. a linear function with a positive slope B. a quadratic function with a negative value of a C. a square root function D. a quadratic function with a positive value of a