Question

please give the correct answer.....1que

Answer 1

Answer:

option D.

Mother can be a sister and sister can be a mother. But, a cannot be a nephew

Answer 2

Step-by-step explanation:

Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model and matrix mechanics), part of quantum field theory, is a fundamental theory in physics. It describes physical properties of nature on an atomic