A study was conducted to assess car safety among child passengers in car accidents. The outcome was a severity of injury score. The study considered two main factorsbooster seat use (yes, no) and position in car (front versus back seat).Before conducting a two-way ANOVA, the investigators assessed whether there was an interaction between these factors.They found that there was a qualitative interaction.Given that there was a qualitative interaction, which of the following next steps are appropriate?Select all that apply.

a.We should run a one way ANOVA for position and another one way ANOVA for booster seat use.

b.We should ignore the effect of booster seats and just focus on a one way ANOVA for position.

c.We should ignore the effect of position and just focus on a one way ANOVA for booster seat use.

d.We should look at the effect of booster seat use in the front seat first (via a one way ANOVA for booster seat use in this subset) and then look at the effect of booster seat use in the back seat (via a one-way ANOVA for booster seat use in this subset).

e.We should look at the effect of position among those with a booster seat first (via a one way ANOVA for position in this subset) and then look at the effect of position among those without a booster seat (via a one-way ANOVA for position use in this subset).

f.The analysis work is complete.No additional analyses are needed.