Which one of the following statements is correct?

Tapetum of microsporangium nourishes the pollen and contributes to the formation of exine of pollen grain.

(1) Endothecium of microsporangium is hypodermal in position and has fi bros thickenings. It helps in  breakage of anther besides behaving as a protective structure.

(3) Hard outer layer of pollen grain is called exine but not intine. It has sporopollenin. 

(4) Sporogenous tissue of anther or microsporangium is diploid but not haploid.