Question

Which of a lake is most likely to be aphotic?

Answer 1

The aphotic zone is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1% of sunlight penetrates.

Explanation:

In general, the deeper you go, the more you approach (or reach) the aphotic zone.

www.waterontheweb.org/under/lakeecology/10_biological_lakezones.html

https://mason.gmu.edu/~klargen/111lectecosystemsaquaticbiomesspring04.htm

http://academic.keystone.edu/JSkinner/Limnology/Light_In_Lakes_LectureNotes.htm

A general interest blog and pictures here:
http://scienceblogs.com/grrlscientist/2010/04/30/life-in-the-aphotic-zone/