If `vec( a) , vec( b) , vec( c ) ` are non coplanar non-zero vectors such that `vec( b) xxvec( c) = vec( a ), vec( a ) xx vec( b) =vec( c ) ` and `vec( c ) xx vec( a ) = vec ( b ) ` , then which of the following is not true

Options

A. `| vec( a) | =1`
B. `[ vec( a ) vec( b ) vec( c ) ] =1`
C. `| vec( a) | + |vec( b)| +| vec( c ) | =3`
D. `| vec( a) | cancel(=) |vec( b)| cancel(=)| vec( c ) | `

Answer

D