Use the Following to Answer Questions

Use the following to answer questions
Scenario II
Scenario II is presents fabricated data inspired by the following study:
Greimel, E., Wanderer, S., Rothenberger, A., Herpertz-Dahlman, B., Konrad, K. & Roessner, V. (2011) . Attentional performance in children and adolescents with tic disorder and co-occurring attention-deficit/hyperactivity disorder: new insights from a 2×2 factorial design study. Journal of Abnormal Child Psychology, 39, 819-828.
Effect of Tic Disorder and ADHD on Children's Attention
This study examined the extent to which tic disorder (TD) and attention-deficit/hyperactivity disorder (ADHD) , both individually and combined, affects attention in children and adolescents. To that end, the researchers recruited children with and without TD, and children with and without ADHD. This 2 × 2 (TD × ADHD) design resulted in four conditions: children with no diagnosis (control) , children with TD only, children with ADHD only, and children with TD+ADHD. The Child Behavior Checklist (CBCL) was used to quantify three components of attentional behavior: internalizing, externalizing, and attention. The results revealed that children with ADHD+TD had significantly more internalizing than those with TD alone. In addition, children with ADHD+TD as well as children with only ADHD had more externalizing than those with TD alone. Lastly, ADHD+TD children had more attention problems than those with only TD and those with only ADHD. The results of this study suggest that children with ADHD+TD have more behavioral problems than those with single diagnoses and those with no diagnoses.
-(Scenario II) If the researchers also wanted to examine whether having ADHD+TD affected boys and girls differently, they would have had to use which test to analyze the data?

A) t-test for independent means
B) one-way ANOVA
C) two-way ANOVA
D) three-way ANOVA