Answer:
Asexual
Step-by-step explanation:
I would choose asexual reproduction because it only involves one parent; therefore, it is much easier. As well, all of the offspring would be genetically identical. Last but not least, it would help with taking over the planet because it is much faster than sexual reproduction. Hence, a larger number of offspring/organisms would be produced at a higher rate. Asexual reproduction would easily take over the planet.
hope this helps :)