Scenario: The chatbot greeting interface must match the formatting of the following example:

A message exchange between user and bot can contain one or more rich cards rendered as a list or carousel. The Attachments property of the Activity object contains an array of Attachment objects that represent the rich cards and media attachments within the message.
The Bot Framework currently supports eight types of rich cards:
Thumbnail Card. A card that typically contains a single thumbnail image, one or more buttons, and text.
SignIn Card. A card that enables a bot to request that a user sign-in. It typically contains text and one or more buttons that the user can click to initiate the sign-in process.
Incorrect Answers:
B: Animation Card. A card that can play animated GIFs or short videos.
C Hero Card. A card that typically contains a single large image, one or more buttons, and text.
E: Adaptive Card. A customizable card that can contain any combination of text, speech, images, buttons, and input fields.
Note:
Receipt Card. A card that enables a bot to provide a receipt to the user. It typically contains the list of items to include on the receipt, tax and total information, and other text.
Video Card. A card that can play videos.
References:
https://docs.microsoft.com/en-us/azure/bot-service/dotnet/bot-builder-dotnet-add-rich-card-attachments?view=azure-bot-service-3.0