You need to access user claims in the e-commerce web app. What should you do first?
A. Using the Azure CLI, enable Cross-origin resource sharing (CORS) from the e-commerce checkout API to the e-commerce web app.
B. Update the e-commerce web app to read the HTTP request header values.
C. Assign the Contributor RBAC role to the e-commerce web app by using the Resource Manager create role assignment API.
D. Write custom code to make a Microsoft Graph API call from the e-commerce web app.