Which method of the EntityCommand type should you use?

You are developing an ASP.NET MVC application. The application has a page that updates an image
stored in a database. Members of the EntityClient namespace are used to access an ADO.NET Entity
Framework data model. Images and associated metadata are stored in a single database table.
You need to run a single query that updates an image and associated metadata in the database while
returning only the number of affected rows.
Which method of the EntityCommand type should you use?

A.
ExecuteNonQuery()

B.
ExecutcScalar()

C.
ExecuteDbDataReader()

D.
ExecuteReader()