-The Course File and Its Index _____

$\begin{array}{lllll}\begin{array}{lll}\text { Course } \quad\quad \text { Record }\\\text { Name } \quad \quad \text { Address }\\\begin{array}{|l|l|}\hline \text { Anatomy } & 2 \\\hline \text { Biology I } & 1 \\\hline \text { Calculus I } & 4 \\\hline \text { Shakespeare } & 3 \\\hline \text { Statistics II } & 5 \\\hline\end{array}\\\text { Index }\end{array}&\begin{array}{lllll}\text { Record }&\text { Course\quad\quad\quad Course\quad\quad\quad\quad Number of\quad Professor }\\\text { Number }&\text { Number\quad\quad\quad Name\quad\quad\quad\quad Credits\quad\quad in Charge }\\\begin{array}{lr}1\\2\\3\\4\\5\end{array}&\begin{array}{|l|l|l|l|}\hline \text { BIOL1001 } & \text { Biology I } & 4 \quad\quad\quad& \text { Smith } \\\hline \text { BIOL3020 } & \text { Anatomy } & 3 & \text { Jones } \\\hline \text { ENGL2540 } & \text { Shakespeare } & 3 & \text { Duncan } \\\hline \text { MATH2000 } & \text { Calculus I } & 4 & \text { Stevens } \\\hline \text { MATH3500 } & \text { Statistics II } & 3 & \text { Jones } \\\hline\end{array}\\\end{array}\end{array}$
-The Course file and its index _____.

A) is an indexed-sequential file because the index is in sequence by Course Name
B) is an indexed sequential file because the index and the file are each in sequence by some field
C) is an indexed sequential file because an index is built over one of the file's fields
D) is not an indexed sequential file because the indexed field is not the one on which the file is sequenced
E) is not an indexed sequential file because only one of the file's fields is indexed