C#.NET object creation semantics: given class Student s1, s2; // Student is a user-defined class s1 = new Student(); s2 = new Student(); Which statement best describes what is true about s1 and s2 and the created objects?

Introduction / Context:
The snippet creates two separate instances of the class Student. Understanding what variables s1 and s2 hold, how objects are allocated, and what default state two new instances have is central to object-oriented programming in C#.

Given Data / Assumptions:

• s1 and s2 are variables of reference type Student.
• Each call to new Student() constructs a fresh object on the managed heap.
• No fields are explicitly assigned after construction.

Concept / Approach:
Each new Student() call returns a reference to a distinct object. If the default constructor does not set different values, both newly created objects will start with the same default field values (e.g., 0, null, false), hence the contents (field values) match initially, though the references (addresses) differ.

Step-by-Step Solution:

Verification / Alternative check:
Print ReferenceEquals(s1, s2) → false. Compare default field values on both instances → equal (unless randomized initialization is coded).

Why Other Options Are Wrong:

• A: “Contents of s1 and s2” may be read as the references themselves (addresses), which are not the same.
• B: Class objects are allocated on the heap, not the stack.
• D: The CLR does not guarantee adjacency of object allocations.
• E: .NET uses garbage collection; delete() is not used.

Common Pitfalls:
Confusing variable identity (reference) with object state; assuming deterministic adjacency of allocations; thinking manual deletion is required in .NET.

Final Answer:
Contents of the two objects created will be exactly same.