Texas Exes Scholarship Application Question??

This might be a silly elementary question but I don’t want to make another mistake. The 1st major I applied for at UT Austin was Biology, entry-level. But my only choices for Biology to put my answer as are:

Natural Sciences:
Biology/Cell and Molecular Biology
Biology/Computational Biology
Biology/Ecology, Evolution and Behavior
Biology/Human Biology
Biology/Marine and Freshwater Science
Biology/Microbiology and Infectious Diseases
Biology/Neurobiology
Biology/Plant Biology
Biology/Teaching

Which one do I put it as? Or do I put Natural Sciences: Undeclared? I don’t think so…

If you don’t have a specific interest yet in biology, then Natural Sciences: Undeclared would be the correct option.