Of the c students at a certain college, x are studying French and y are studying German. If w are studying both French and German, which of the following expresses the number of students at the college not studying either French or German ?  Choose the correct choice from the following answers.
A) c + w- x- y  B) c - w- x- y  C) z- w - x + y  D) w + x + y- z  E) w - x - y - z
{Total} = {French} + {German} - {Both} + {Neither}   c = x + y - w + {Neither}   {Neither} = c + w - x - y.   c + w- x- ynswer: c + w- x- y.
<result>A</result>
Of the c students at a certain college, x are studying French and y are studying German. If w are studying both French and German, which of the following expresses the number of students at the college not studying either French or German ?