Many people, especially family members, willfully try to help people they care about by cosigning for loans and other contractual obligations. The following are true for cosigned loans:

Legally, cosigning for a loan is exactly the same as obtaining a loan.

Cosigners agree to take on the responsibility to pay only the principal on the debt if the primary borrower does not or cannot make payments.

Cosigners agree to take on the responsibility to pay both the principal and the interest, on the debt if the primary borrower does not or cannot make payments.

A and B are true

A and C are true