Although Ghana is a relatively small country its economic environment is similar to several other developing countries in Africa, Latin America, the Caribbean, and parts of Asia where formerly agrarian-based economies are now shifting to industrial and service-based economies.
Confused between A and B? Hope my explanation below helps you get some clarity.
A) and parts of Asia where
formerly agrarian-based economies are now shifting-
Theory: adverbs are words that describe or modify verbs,adjectives, other adverbs or clauses. Adverbs generally answer one of these four questions about entity they modify: How? When? Where and Why?
The role played by the word formerly logically referring to economies makes its usage wrong in this sentence. Ask yourself does formerly answer the questions-How? When? Where and Why?
The correct form is adjective former, which describes economies.
B) and parts of Asia where former agrarian-based economies are now shiftingC)
missing parts of Asia where former agrarian-based economies are now shifting- in a parallel list the last entity is always preceded by comma+AND
D) and parts of Asia where former agrarian-based economies now
shift- the correct form is now shifting to
E) and parts of Asia where formerly
, agrarian-based economies
, are now shifting- commas not required.