Over the Last 50 Years, the Average Height of the People

Multiple Choice

Over the last 50 years, the average height of the people from the reclusive country of Druidia has been increasing.Based on data profiled in the textbook, which of the following is likeliest to be associated with this increase?

A) an influx of genetically tall people into the country
B) genetic changes over the last 50 years
C) the country undergoing an industrial revolution
D) more people moving into cities, leading to more calories being consumed per person
E) improved diet during infancy and adolescence