The correct option is C Asexual reproduction
The process of reproduction where the organisms reproduce without gamete formation is called asexual reproduction. Budding, binary fission etc are various modes of asexual reproduction. Sexual reproduction is process where new organism is produced due to the fusion of the male reproductive cell with the female reproductive cell. In vitro fertilisation (IVF) is a technique, where the freshly released egg and and sperm are allowed to fertilise under laboratory conditions followed by implantation of the embryo. The process of fertilisation that occurs outside an organism's body is called external fertilisation (example: frog).