Streamlining Billing Process and Charging Google Cloud Costs to Monthly Invoice

D.

Option D is the correct answer to this question. To streamline the billing process and charge the costs of your projects to your company's monthly invoice, you need to change the billing account of your projects to the billing account of your company.

Here's a more detailed explanation of why:

First, let's understand what a billing account is. A billing account is a Google Cloud entity that represents an agreement between Google and a customer to pay for Google Cloud resources and services. When you create a billing account, you provide a payment method such as a credit card, and Google charges the payment method for the usage of Google Cloud resources.

When you use your own credit card to experiment with Google Cloud, you're using your personal billing account. In this scenario, you're responsible for paying the bills associated with your projects.

To charge the costs of your projects to your company's monthly invoice, you need to use your company's billing account. You can do this by changing the billing account associated with your projects to your company's billing account.

To change the billing account associated with your projects, follow these steps:

1. Go to the Google Cloud Console and select your project.
2. Click on the three dots icon at the top right corner of the page and select "Billing".
3. Click on "Link a billing account".
4. Select your company's billing account from the list of available billing accounts.
5. Follow the prompts to confirm the billing account change.

Once you've changed the billing account associated with your projects to your company's billing account, your company will be responsible for paying the bills associated with your projects. You'll no longer need to use your personal credit card to pay for the usage of Google Cloud resources.

Option A is not the best answer because granting the financial team the IAM role of Billing Account User on the billing account linked to your credit card would give them access to your personal billing account, not your company's billing account.

Option B is not the best answer because setting up BigQuery billing export and granting your financial department IAM access to query the data would only allow them to view the billing data, not charge the costs to your company's monthly invoice.

Option C is not the best answer because creating a ticket with Google Billing Support to ask them to send the invoice to your company would not change the billing account associated with your projects. Your company would still not be responsible for paying the bills associated with your projects.