Which of the following is typically not a problem for low-income DVCs?

A) capital flight
B) "brain drain"
C) high saving rates that slow aggregate demand growth
D) poor infrastructure

High saving rates that slow aggregate demand growth are typically not a problem for low-income Developing and Vulnerable Countries (DVCs). These countries often face issues like capital flight, brain drain, and poor infrastructure, but high saving rates slowing down aggregate demand is not commonly among their economic challenges. Instead, low-income DVCs usually struggle with low saving rates due to limited income and high levels of poverty.