Point charges ( q₁ = 2.5 , μ C ) and ( q₂ = 6.0 , μ C ) are located at ( vecr₁ = (3.0i - 2.0j + 6.0k) , m ) and ( vecr₂ = (8.0i + 4.0j - 9.0k) , m ). What is the force (in N) of ( q₂ ) on ( q₁ )? (Express your answer in vector form.)
a) ( -5.67 , i + 3.78 , j - 6.73 , k , N )
b) ( -3.78 , i + 5.67 , j - 6.73 , k , N )
c) ( 5.67 , i + 3.78 , j + 6.73 , k , N )
d) ( 3.78 , i + 5.67 , j + 6.73 , k , N )