HGP was called a mega project due to all the following reasons, except that

One of the goals of HGP is to address the ethical, legal and social issues (ELSIs) associated with the project. But it is not the reason why it is called a mega project.

HGP is called a mega project due to the huge number of bases sequenced, the cost of the project, the number of people involved, and the huge data that is generated.