What is the output of the following code: struct Student { int roll; }; Student s1; s1.roll = 101; cout << s1.roll; in C++?

A. A collection of functions B. A reserved keyword in C++ C. A user-defined data type containing variables of different data types D. A way to declare arrays of data

A. typedef B. struct C. union D. None of the above

A. Using the star operator B. Using the double colon operator C. Using the dot operator D. Using the arrow operator

A. To define a new structure B. To initialize structure members C. To create a pointer to a structure D. To create an alias for data types