The karyotype is the chromosomal arrangement of an individual. This can be captured in an image and analyzed to know the sex of an individual because we can see if it has 2 X chromosomes or one X and one Y. The karyotype can also be used to look for chromosomal abnormalities, such as trisomies of chromosome 21 that cause Down syndrome, because of this, it is also used to identify genetic diseases. Therefore, all answers are correct.