Market researcher Tanya Tanika wants to test whether men like a new flavour of yogurt, which tastes ...

Market researcher Tanya Tanika wants to test whether men like a new flavour of yogurt, which tastes like cigar smoke and beer, more than women do. She distributes samples at a grocery store, including 50 samples in blue cups to adult males and 50 samples in pink cups to adult females shopping alone. Afterward, she checks shelves and garbage cans to locate the used blue and pink cups and measures whether more waste (i.e., uneaten yogurt) was left in blue or pink cups. What type of sampling was used in the study?
A) Random
B) Quota
C) Stratified
D) Snowball
E) Cluster