When the positive integer \(n\) is divided by \(7,\) the quotient is \(q\) and the remainder is \(4.\) When \(2n\) is divided by \(7,\) the remainder is \(1\) and the quotient, in terms of \(q,\) is
A. \(q/2\)
B. \(q/2 + 1\)
C. \(2q\)
D. \(2q+1\)
E. \(2q+2\)
The OA is D