The correct option is C I and II
The human genome project was a collaborative international project started to map and sequence the entire human genome. The HGP's ultimate goal was to discover and and map all of the approximately 35,000 human genes and make them accessible for further biological study. To facilitate the future interpretations of human gene function, the HGP also conducted parallel studies on the genetic makeup of other organisms like fruit fly, yeast, Arabidopsis.
Among various others findings of HGP, it was found out that chromosome 1 has maximum number of genes and Y-chromosome has the fewest.