In Her Research on Stereotyping,Efrat Conducted a Very Large 2

In her research on stereotyping,Efrat conducted a very large 2 x 2 (Target Gender x Judgmental Time Pressure) factorial study.She observed an interesting main effect of target gender.However,she did not observe a main effect of time pressure,and she did not observe any evidence for a significant interaction.Efrat's failure to observe a significant interaction could be thought of as evidence for:

A) the internal validity of her target gender effect
B) the external validity of her target gender effect
C) the lack of internal validity of her target gender effect
D) the lack of external validity of her target gender effect