Suppose that p,q and r are three non-coplanar vectors. Let the components of s along p,q&r are 4,3&5

Suppose that p,q and r are three non-coplanar vectors in R^3. Let the components of a vector S along p,q and r be 4,3 and 5 respectively. If the components of this vector s along (-p+q+r),(p-q+r) and (-p-q+r) are x,y and z respectively, then the value of 2x+y+z is ?
A. 4
B. 9/2
C. 9
D. -7/2