False about informed consent document is ?

Ans. is 'b' i.e.,Not need to be signed by doctor Legally valid consent for medical examination and treatment is one :?Given by person himself, if above 12 years, conscious and mentally sound (sane).Or given by parent, guardian, or friend, if patient is less than 12 years or is unconscious or is insane.Is written informed consent, i.e. is given in writting after knowing the nature of condition of procedure, its alternatives and its complications. All disclosures should be done in a language that the patient best understand.Given in presence of two witnesses.Given before the actual doing of procedure.Given freely, voluntarily and directly; without fear, force or fraud.Signed by doctor, patient (or guardian) and witnesses.