Match each e-commerce concept with its accurate description.

- A.	Pixel-based retargeting
- B.	Payment gateway
- C.	Integrated payment processing
- D.	Enabling cache

A.	Customer payment is managed on the e-commerce marketer's platform/site.
B.	Requires audience member not clearing past browsing behavior data collected by cookies
C.	Confirms or declines a payment transaction on the e-commerce marketer's site
D.	allows a visited page to be stored in a site visitor's browser for faster reloading if they return to it