Generally Speaking, There Has Been A(n) ______________ Since the 1990s

Generally speaking, there has been a(n) ______________ since the 1990s.

A) increase in the stock but not in the flow of FDI in the world economy
B) marked increase in both the flow and stock of FDI in the world economy
C) marked decrease in both the flow and stock of FDI in the world economy
D) increase in flow but not the stock of FDI in the world economy
E) greater restrictions on the outflow, while liberalization of the inflow of FDI