Which of the following statements are TRUE in a contractual capacity?

A. Law presumes that every person is competent to contract unless otherwise proved

B. That a minor can make a contract for necessities of life

C. That a person of unsound mind can enter into the family contracts

D. A convict cannot enter into a valid contract nor can sue

E. That a wife can always make valid business contracts and bind her husband

Choose the correct answer from the options given below: