How many parents are needed in asexual reproduction?

Asexual reproduction is :

What is asexual reproduction?

What is asexual reproduction?

What is asexual reproduction ?

{:("Zoospore,","Conidia,","Tuber,"),("Offset,","Pollen,","Zygote,"):} From the structure given in above box how many are not associated with asexual reproduction ?

Asexual reproduction involves