Question: an advertiser is interested in the effects of color and...

An advertiser is interested in the effects of color and size of containers on people's tendency to buy a product. He prepares containers consisting of all combinations of all 4 colors with all 3 sizes and asks each individual in a group of recruited subjects to rate each of the containers on how likely they would be to buy it on a Likert scale from 1-3. What type of design does this study represent?

1. 4x3 within-subjects design
2. 2x2 mixed subject design
3. 3x4 between-subjects design
4. 3x3x4 mixed design