A plane passes through the point (1,1,1) . If b,c,a are the direction ratios of a normal to the plane where a,b,c ( a<b<c ) are the prime factors of 2001, then the equation of the plane Π is
a. 29x+31y+3z=63
b. 23x+29y−29z=23
c. 23x+29y+3z=55
d. 31x+37y+3z=71