Google Merchant center is used to:
- A) Manage bidding for Shopping campaigns
- B) Monitor the performance of Shopping campaigns
- C) Submit product information
- D) Host website images
Explanation: Google Merchant Center is a tool that helps you upload your store and product data to Google and make it available to Google Shopping and other Google services.
Read more here: https://support.google.com/merchants/answer/188493?hl=en