Q. Go through the following statements related to vaccination and identify the false statement

(a) Administration of 2 live antigens-a minimum interval of 4 weeks is recommended, if not administered simultaneously
(b) Two or more killed antigens may be administered simultaneously or at any interval between the doses
(c) There is no minimum recommended time interval between two types of vaccines
(d) if not sure about the immunization status of the child all the vaccine recommended in the immunization schedule need to give from the beginning