In Liebmann v. Canada (Minister of National Defence), which section of the Canadian Charter of Rights and Freedoms did Lieutenant Liebmann use to challenge the decision, and what did he have to prove to show infringement of his Charter rights?

a) Section 8 - Right to be secure against unreasonable search or seizure.
b) Section 15(1) - Equality rights.
c) Section 2(b) - Freedom of expression.
d) Section 7 - Right to life, liberty, and security of the person.