Visual studio .net’s feature displays all the members in a class
a. real-time error checking
b. quick info
c. outlined code
d. intellisense

d)Intellisense

Explanation: Visual Studio.NET is the tool for the development of the application .Intellisense is the type of code that is found in the Visual Studio.NET which is used for the intelligent completion of text or code. The factors present in the Visual studio NET has are tracking of the values, increasing the understanding of code,presenting the class member etc.

Other options are incorrect because real time error checking is for the checking of the error raising at the time of execution, Quick info is for gaining data rapidly and outlined code are for display of the hierarchical structure of codes.Thus, the correct option is option(d).

the save and close button

i think the answer is b.