Quasi-Experimental Designs Researchers Measured the Sugared-Beverage Consumption and Obesity of

Quasi-Experimental Designs Researchers measured the sugared-beverage consumption and obesity of
The same children for two years.They found that when these children added
One sugared drink a day to their diet, their risk of obesity increased 60%.
Which quasi-experimental design did they use?

A) cross-lagged panel design
B) cross-sectional study
C) longitudinal design
D) pretest/posttest design