According to NCERT text, which of the following are selection and testing of superior recombination in plant breeding?

The correct option is D
All of the above
Plant breeding is the method used for the mating of the plants and production of superior characters in the hybrid. The parent plants are selected for the hybridization experiment by observing the superior characters by breeding them for many generations and creating a pure line breed. The hybrid which is produced are also tested by cultivating them for generations in order to observe that the characters are inherited in every generation. These hybrid are superior to both the parents. This is termed as hybrid vigour.

This step comprises selecting, among the progeny of the hybrids, those plants that have the desired character combination. The selection process yields plants that are superior to both of the parents. These plants are self-pollinated for several generations till they come to a state of uniformity (homozygosity) so that the characters will not separate in the progeny.

Hence, all the statements are correct.