I believe that would be B
A. Indonesia.
the Federated States of Micronesia and the Indonesia (both of which consist of thousands of islands). Others consist of a single island, such as Nauru, or part of an island, such as Haiti.
D. Islands used for agriculture
Answer:
An energy system is a system primarily designed to supply energy-services to end-users.[1]:941 Taking a structural viewpoint, the IPCC Fifth Assessment Report defines an energy system as "all components related to the production, conversion, delivery, and use of energy".[2]:1261 The field of energy economics includes energy markets and treats an energy system as the technical and economic systems that satisfy consumer demand for energy in the forms of heat, fuels, and electricity.[1]:941