Answer:
We should use Id CSS selector if we want to define a style for a unique element. Explanation: CSS stands for cascading style sheets that are used to display the content inside any text or are generally used in the web pages.
Joining a workgroup requires setting up the PC with a workgroup name.
Option A because the environment should be selected for which the changes are to be applied. In a time Force IDE has many project environments for example maybe a java project and C++ project would be there on sandbox, so the environment selection is important.
Option B because the related changed sets should be specified so that other developers that have access to the project can see the changes being made.
Option D The data fields that are needed to be deployed should also be provided so that the updated version can be seen by other developers.
Rejected Options :
Option C user name and password has nothing to do with the production environment because if the user has it only then it can come and make changes.
