You work at an agency and one of your clients wants to track performance by product category (ex: apparel) and gender. They already passed the required and optional attributes for apparel in the product feed. Which of these techniques could help them achieve granular reporting?

Create a catch-all campaign. Example: Campaign #1: Tops Product group: All products
Create a campaign for each gender, then set up product groups by apparel type. Example: Campaign #1: Women Product group #1: Tops Product group #2: Shoes
Create a campaign by product category, then set up product groups by gender. Example: Campaign #1: Tops Product group #1: Women’s Top Product group #2: Men’s Top
Create a campaign by product category and gender, and use product groups. Example: Campaign #1: Women’s Top Product group #1: Sweater Product group #2: Short Sleeves