Read the Following Scenario and Answer the Questions Below

Read the following scenario and answer the questions below.
Northeast of Australia and northwest of Fiji lies the isolated tropical island of Tikopia. Less than two square miles in length, it supports 1,200 people and has been continuously occupied for nearly 3,000 years, with the population holding steady for much of that time. It has a two-month dry season every year and lies in the Pacific's cyclone belt, which destroys homes and gardens on an unpredictable but regular basis. Tikopia is too far away from other islands to have any regular contact; the islanders must be self-sufficient.
-As of 2013, nearly 700 university presidents had signed a University Presidents' Commitment to ____________

A) increase campus biodiversity
B) reduce solid wastes
C) increase electrical consumption
D) take inventories and set dates for becoming carbon- neutral
E) conserve water