Which of the following scenarios can lead to a dangling pointer?Marks : 1Negative Marks : 0Answer hereReturning a pointer to a local variable from a functionUsing malloc() for memory allocationAssigning a pointer to another pointerDeclaring a pointer inside main()

The scenario that can lead to a dangling pointer is "Returning a pointer to a local variable from a function".

Here's why:

1. A local variable is created on the stack when a function is called and it gets destroyed once the function call is over.

2. If you return a pointer to such a local variable, the pointer is pointing to a location that is no longer valid because the local variable doesn't exist after the function call is over.

3. This is what is known as a dangling pointer - a pointer that doesn't point to a valid memory location.

The other scenarios mentioned do not necessarily lead to a dangling pointer.

• Using malloc() for memory allocation: This is a common way to allocate memory dynamically in C. If used correctly, it does not lead to a dangling pointer.

• Assigning a pointer to another pointer: This is also a common operation in C. It does not lead to a dangling pointer unless the original pointer becomes a dangling pointer for some reason.

• Declaring a pointer inside main(): This is a common way to declare a pointer. It does not lead to a dangling pointer as long as the pointer is used correctly.