Human capital theory predicts what about workers' migratory patterns

A、

. People will tend to flow from places with relatively poor earnings opportunities toareas with better earnings opportunities

People will tend to migrate from wealthy industrialized nations to poorunderdeveloped ones to take advantage ofthe lower living costs in the latter.

. People will generally not concern themselves with their economic opportunities in
choosing a place to live; they will rather look for warm climates, great natural beauty
and a stable political environment.

People will tend to flow from warm climates to cold ones.