Read the following statements:

(i) All events-from pollen deposition on the stigma until pollen tubes enter the ovule-are together referred to as pollen-pistil interaction.

(ii) Pollen-pistil interaction is a dynamic process involving pollen recognition followed by promotion or inhibition of the pollen.

(iii) Artificial hybridization is achieved by emasculation and bagging techniques.

(iv) Removal of anthers from the flower bud before the anthers from the flower bud before the anther dehisces referred to as bagging.

(v) Since two types of fusions, syngamy and triple fusion take place in an embryo sac the phenomenon is termed double fertilization.

Of above statements which one is correct?