Question

Because it is part of the US but is still a self-governing autonomous state, Puerto Rico is a good example of a __________.
a. region
b. colony
c. territory
d. commonwealth

Answer 1

The best answer to the incomplete statement which is 'Because it is part of the US but is still a self-governing autonomous state, Puerto Rico is a good example of a..' would be considered as a territory (since it is already a self-governing autonomous state). 

Answer 2

the answer is the letter "D"