The reason a brand name item (e.g., Tyson chicken) has a larger price elasticity than a class or a broad group of items (e.g., chicken) is that

Multiple Choice

• there are fewer substitutes for chicken generally than for Tyson chicken.
• it takes a lot of time to adjust to a substitute brand of chicken.
• the share of income spent on "chicken" is larger than spent on "Tyson Chicken".
• there are fewer substitutes for Tyson chicken than for chicken generally.