The Countries Which Have Begun Modern Economic Growth Later Than

The countries which have begun modern economic growth later than the others can catch up because:

A) for them, it is quicker to adopt technology rather than inventing one.
B) for them, it is harder to adopt technology rather than inventing one.
C) for them, it is as hard to adopt technology as it is to invent one.
D) for them, it is very easy to invent a new technology with lower cost.