What Is a Potential Problem with Using Diet Histories to Gauge

What is a potential problem with using diet histories to gauge energy intake? 

A)  They focus primarily on past energy intakes and ignore current activity. 
B)  They do not factor into the energy balance equation. 
C)  Obese people tend to overestimate energy intakes, while normal-weight people tend to underestimate energy intakes. 
D)  Both normal-weight and obese people commonly misreport actual energy intakes. 
E)  Past diet histories are less useful given today's abundance of fast-food options.