Regarding the invalidity of legal transactions, choose the correct alternative: a) The effects of the declaration of nullity of the legal transac...

Regarding the invalidity of legal transactions, choose the correct alternative:


a) The effects of the declaration of nullity of the legal transaction go back to the moment of its celebration, and it can never be confirmed, ratified, or converted into another.
b) When the law prohibits the practice of a legal act without imposing a penalty, if it is practiced, it will be null.
c) The emancipation of a minor with 16 years of age, granted by both parents by public deed, depends, for its validity, on judicial approval.
d) The relative incapacity of a minor between 16 and 18 years old authorizes him/her to invoke the annulment of a legal transaction carried out without assistance, even if he/she declared himself/herself to be of legal age at the time of its celebration.
e) Among the categories of legal facts, only legal transactions can be invalidated.