Suppose a Railway That Carries Goods Across Canada Recently Implemented

Suppose a railway that carries goods across Canada recently implemented an employment policy not to hire pregnant women to work on the trains. On what grounds could it be challenged if Lara, who is two months pregnant, were to apply for a position with the railway and was not hired because of her pregnancy?

A) Discrimination on the basis of sexual orientation under the provincial Human Rights Act.
B) Discrimination on the basis of sex under the Canadian Human Rights Act.
C) Discrimination on the basis of family status under the Canadian Human Rights Act
D) Discrimination on the basis of marital status under the provincial Human Rights Act.
E) The policy is beyond the powers of the company to enact.