What is the data model of DynamoDB?

A.
“Items”, with Keys and one or more Attribute; and “Attribute”, with Name and Value.

B.
“Database”, which is a set of “Tables”, which is a set of “Items”, which is a set of “Attributes”.

C.
“Table”, a collection of Items; “Items”, with Keys and one or more Attribute; and “Attribute”, with Name and Value.

D.
“Database”, a collection of Tables; “Tables”, with Keys and one or more Attribute; and “Attribute”, with Name and Value.

Explanation:
The data model of DynamoDB is:
“Table”, a collection of Items;
“Items”, with Keys and one or more Attribute;
“Attribute”, with Name and Value.
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html