Choose the correct answer after considering the following statements: 1. A weak pointer can be used to delete the object to which it points if a temporary shared pointer is created from the weak pointer. 2. Proper use of weak pointers can prevent memory leaks. 3. Weak pointers observe and don't own resources. O Only 1 is true O Only 1 and 3 are true O Only 3 is true O Only 2 and 3 are true O Only 2 is true