Option 1: Hybridisation refers to the process of crossing two different species or individuals to produce offspring with desired traits. This does not result in a group of individuals that are identical, which is the definition of a clone. Therefore, option 1 is incorrect.

Option 2: Micropropagation is the process of growing plants from very small tissue samples, such as a single cell or a piece of a leaf, in a laboratory setting. This method allows for the rapid production of genetically identical plants, resulting in a group of individuals that are clones of each other. Therefore, option 2 is the correct answer.

Option 3: Cross pollination refers to the transfer of pollen from the flower of one plant to the flower of another plant, which can result in genetic variation and offspring that are not identical to each other. This is not the process of creating clones, so option 3 is incorrect.

Option 4: Self pollination occurs when pollen from the stamen of a flower fertilizes the stigma of the same flower or another flower on the same plant. While this can result in offspring that are genetically similar, it does not create a group of genetically identical individuals, which is the definition of a clone. Therefore, option 4 is incorrect.

In conclusion,