You forgot the options, but I can give you some examples, maybe this will help:
A distribution map will show you where and how much of a certain thing is happening. for example:
the percentage of literate or illiterate people in the different places
some characteristics, for example the average age, or average income for people in a certain area - here you would give a different colour for the different age or income groups.
The first one. The use of irrigation.
Geography is the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industry
