A small island country has a very high population density. It has a shortage of natural resources but has specialized in producing high-end electronics.

d.it must engage in international trade.

Explanation:

If the nation is poor in the supply of natural resources, they will need a steady supply of the natural resources required to produce high-end electronics from other countries where raw material is available.

This means therefore that the country engages in international trade in order to get those raw materials and then after they produce the electronics, they probably sell them to other countries as well. This is the model that Japan adopted.

the minoan civilization flourished in the middle bronze age on the island of crete located in the eastern mediterranean from c. 2000 bce until c. 1500 bce. with their unique art and architecture, and the spread of their ideas through contact with other cultures across the aegean, the minoans made a significant contribution to the development of western european civilization as it is known today. labyrinth-like palace complexes, vivid frescoes depicting scenes such as bull-leaping and processions, fine gold jewelry, elegant stone vases, and pottery with vibrant decorations of marine life are all particular features of minoan crete.  

so basically their unique way of ding arts, as well as architecture.

i want to say death; parole, probation, and fines are still being used all the time.